[FEAT] Add Kofi btn

Caddyfile

@@ -1,16 +1,28 @@
 http://spritesheetgenerator.online:1337 {
     root * ./dist
-    encode gzip
+    encode zstd gzip
+
+    # Aggressive caching for static assets
+    @static path *.js *.css *.png *.jpg *.jpeg *.gif *.webp *.svg *.woff *.woff2 *.ico
+    header @static Cache-Control "public, max-age=31536000, immutable"
+
+    # Short cache for HTML (for SPA updates)
+    @html path *.html /
+    header @html Cache-Control "no-cache, must-revalidate"
+
+    # Default cache for everything else
+    header ?Cache-Control "max-age=1800"
 
     try_files {path} /index.html
-
-    file_server
+    file_server {
+        precompressed zstd gzip
+    }
 
     log {
         output file /var/log/caddy/spritesheetgenerator.online.log
     }
-
-    header {
-        ?Cache-Control "max-age=1800"
-    }
+}
+
+:1338 {
+    redir https://spritesheetgenerator.online{uri} permanent
 }

LICENSE.md

@@ -0,0 +1,636 @@
+# GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
+
+Copyright (C) 2007 [Free Software Foundation, Inc.](http://fsf.org/)
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+## Preamble
+
+The GNU General Public License is a free, copyleft license for software and
+other kinds of works.
+
+The licenses for most software and other practical works are designed to take
+away your freedom to share and change the works. By contrast, the GNU General
+Public License is intended to guarantee your freedom to share and change all
+versions of a program--to make sure it remains free software for all its users.
+We, the Free Software Foundation, use the GNU General Public License for most
+of our software; it applies also to any other work released this way by its
+authors. You can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom to
+distribute copies of free software (and charge for them if you wish), that you
+receive source code or can get it if you want it, that you can change the
+software or use pieces of it in new free programs, and that you know you can do
+these things.
+
+To protect your rights, we need to prevent others from denying you these rights
+or asking you to surrender the rights. Therefore, you have certain
+responsibilities if you distribute copies of the software, or if you modify it:
+responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or for
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+
+Developers that use the GNU GPL protect your rights with two steps:
+
+  1. assert copyright on the software, and
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+
+The precise terms and conditions for copying, distribution and modification
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+
+## TERMS AND CONDITIONS
+
+### 0. Definitions.
+
+*This License* refers to version 3 of the GNU General Public License.
+
+*Copyright* also means copyright-like laws that apply to other kinds of works,
+such as semiconductor masks.
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+An interactive user interface displays *Appropriate Legal Notices* to the
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+You may convey verbatim copies of the Program's source code as you receive it,
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+### 6. Conveying Non-Source Forms.
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+You may convey a covered work in object code form under the terms of sections 4
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+### 7. Additional Terms.
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+*Additional permissions* are terms that supplement the terms of this License by
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+### 9. Acceptance Not Required for Having Copies.
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+
+### 10. Automatic Licensing of Downstream Recipients.
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+
+### 11. Patents.
+
+A *contributor* is a copyright holder who authorizes use under this License of
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+called the contributor's *contributor version*.
+
+A contributor's *essential patent claims* are all patent claims owned or
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+If you convey a covered work, knowingly relying on a patent license, and the
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+network server or other readily accessible means, then you must either
+
+  1. cause the Corresponding Source to be so available, or
+  2. arrange to deprive yourself of the benefit of the patent license for this
+     particular work, or
+  3. arrange, in a manner consistent with the requirements of this License, to
+     extend the patent license to downstream recipients.
+
+*Knowingly relying* means you have actual knowledge that, but for the patent
+license, your conveying the covered work in a country, or your recipient's use
+of the covered work in a country, would infringe one or more identifiable
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+
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+convey, or propagate by procuring conveyance of, a covered work, and grant a
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+them to use, propagate, modify or convey a specific copy of the covered work,
+then the patent license you grant is automatically extended to all recipients
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+
+A patent license is *discriminatory* if it does not include within the scope of
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+of one or more of the rights that are specifically granted under this License.
+You may not convey a covered work if you are a party to an arrangement with a
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+
+  - a) in connection with copies of the covered work conveyed by you (or copies
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+  - b) primarily for and in connection with specific products or compilations
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+    that patent license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied
+license or other defenses to infringement that may otherwise be available to
+you under applicable patent law.
+
+### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
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+you from the conditions of this License. If you cannot convey a covered work so
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+pertinent obligations, then as a consequence you may not convey it at all. For
+example, if you agree to terms that obligate you to collect a royalty for
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+could satisfy both those terms and this License would be to refrain entirely
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+
+### 13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have permission to
+link or combine any covered work with a work licensed under version 3 of the
+GNU Affero General Public License into a single combined work, and to convey
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+part which is the covered work, but the special requirements of the GNU Affero
+General Public License, section 13, concerning interaction through a network
+will apply to the combination as such.
+
+### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the GNU
+General Public License from time to time. Such new versions will be similar in
+spirit to the present version, but may differ in detail to address new problems
+or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies
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+
+If the Program specifies that a proxy can decide which future versions of the
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+the Program.
+
+Later license versions may give you additional or different permissions.
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+
+### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE
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+EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
+QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
+COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
+PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
+THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
+INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE
+PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY
+HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided above cannot
+be given local legal effect according to their terms, reviewing courts shall
+apply local law that most closely approximates an absolute waiver of all civil
+liability in connection with the Program, unless a warranty or assumption of
+liability accompanies a copy of the Program in return for a fee.
+
+## END OF TERMS AND CONDITIONS ###
+
+### How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
+use to the public, the best way to achieve this is to make it free software
+which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
+them to the start of each source file to most effectively state the exclusion
+of warranty; and each file should have at least the *copyright* line and a
+pointer to where the full notice is found.
+
+	<one line to give the program's name and a brief idea of what it does.>
+	Copyright (C) <year>  <name of author>
+	
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+	
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+	
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like
+this when it starts in an interactive mode:
+
+	<program>  Copyright (C) <year>  <name of author>
+	This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+	This is free software, and you are welcome to redistribute it
+	under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w` and `show c` should show the appropriate
+parts of the General Public License. Of course, your program's commands might
+be different; for a GUI interface, you would use an *about box*.
+
+You should also get your employer (if you work as a programmer) or school, if
+any, to sign a *copyright disclaimer* for the program, if necessary. For more
+information on this, and how to apply and follow the GNU GPL, see
+[http://www.gnu.org/licenses/](http://www.gnu.org/licenses/).
+
+The GNU General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may consider
+it more useful to permit linking proprietary applications with the library. If
+this is what you want to do, use the GNU Lesser General Public License instead
+of this License. But first, please read
+[http://www.gnu.org/philosophy/why-not-lgpl.html](http://www.gnu.org/philosophy/why-not-lgpl.html).

index.html

@@ -2,36 +2,45 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+    <!-- Preconnect to external domains for performance -->
+    <link rel="preconnect" href="https://cdnjs.cloudflare.com" crossorigin>
+    <link rel="dns-prefetch" href="https://cdnjs.cloudflare.com">
+    <link rel="preconnect" href="https://a.adhd.sh" crossorigin>
+    <link rel="dns-prefetch" href="https://a.adhd.sh">
+    <link rel="preconnect" href="https://pagead2.googlesyndication.com" crossorigin>
+    <link rel="dns-prefetch" href="https://pagead2.googlesyndication.com">
 
     <link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <link rel="shortcut icon" href="/favicon.ico" />
     <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
-    <meta name="apple-mobile-web-app-title" content="MyWebSite" />
+    <meta name="apple-mobile-web-app-title" content="Spritesheet Generator" />
     <link rel="manifest" href="/site.webmanifest" />
 
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
     <!-- Primary Meta Tags -->
-    <title>Spritesheet Generator - Create Game Spritesheets Online</title>
-    <meta name="title" content="Spritesheet Generator - Create Game Spritesheets Online">
+    <title>Spritesheet generator - Create Game Spritesheets Online</title>
+    <meta name="title" content="Spritesheet generator - Create Game Spritesheets Online">
     <meta name="description" content="Free online tool to create spritesheets for game development. Upload sprites, arrange them, and export as a spritesheet with animation preview.">
-    <meta name="keywords" content="spritesheet generator, sprite sheet maker, game development, pixel art, sprite animation, game assets, 2D game tools">
-    <meta name="author" content="nu11ed">
+    <meta name="keywords" content="Spritesheet generator, sprite sheet maker, game development, pixel art, sprite animation, game assets, 2D game tools">
+    <meta name="author" content="streetshadow">
     <meta name="robots" content="index, follow">
+    <link rel="canonical" href="https://spritesheetgenerator.online/">
 
     <!-- Open Graph / Facebook -->
     <meta property="og:type" content="website">
     <meta property="og:url" content="https://spritesheetgenerator.online/">
-    <meta property="og:title" content="Spritesheet Generator - Create Game Spritesheets Online">
+    <meta property="og:title" content="Spritesheet generator - Create Game Spritesheets Online">
     <meta property="og:description" content="Free online tool to create spritesheets for game development. Upload sprites, arrange them, and export as a spritesheet with animation preview.">
     <meta property="og:image" content="/og-image.png">
 
     <!-- Twitter -->
     <meta property="twitter:card" content="summary_large_image">
     <meta property="twitter:url" content="https://spritesheetgenerator.online/">
-    <meta property="twitter:title" content="Spritesheet Generator - Create Game Spritesheets Online">
+    <meta property="twitter:title" content="Spritesheet generator - Create Game Spritesheets Online">
     <meta property="twitter:description" content="Free online tool to create spritesheets for game development. Upload sprites, arrange them, and export as a spritesheet with animation preview.">
     <meta property="twitter:image" content="/og-image.png">
 
@@ -39,8 +48,6 @@
     <meta name="theme-color" content="#0096ff" media="(prefers-color-scheme: light)">
     <meta name="theme-color" content="#111827" media="(prefers-color-scheme: dark)">
 
-    <title>Spritesheet generator</title>
-
     <script
       src="https://a.adhd.sh/api/script.js"
       data-site-id="7"
@@ -48,9 +55,6 @@
       data-session-replay="true"
       defer
     ></script>
-
-    <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-3715260871588949"
-            crossorigin="anonymous"></script>
   </head>
   <body>
     <div id="app"></div>

package.json

@@ -13,18 +13,23 @@
   },
   "dependencies": {
     "@tailwindcss/vite": "^4.1.1",
+    "@vueuse/head": "^2.0.0",
+    "buffer": "^6.0.3",
     "gif.js": "^0.2.0",
+    "gray-matter": "^4.0.3",
     "jszip": "^3.10.1",
     "marked": "^15.0.7",
     "pinia": "^3.0.1",
     "pocketbase": "^0.26.2",
-    "vue": "^3.5.13"
+    "vue": "^3.5.13",
+    "vue-router": "^4.6.3"
   },
   "devDependencies": {
     "@ianvs/prettier-plugin-sort-imports": "^4.4.1",
+    "@tailwindcss/typography": "^0.5.19",
     "@tsconfig/node22": "^22.0.1",
     "@types/gif.js": "^0.2.5",
-    "@types/node": "^22.13.14",
+    "@types/node": "^22.19.1",
     "@vitejs/plugin-vue": "^5.2.3",
     "@vue/tsconfig": "^0.7.0",
     "autoprefixer": "^10.4.21",

public/CHANGELOG.md

@@ -1,5 +1,9 @@
 All notable changes to this project will be documented in this file.
 
+## [1.8.0] - 2025-11-23
+- Fix context menu location
+- You can now reposition all sprites in current frame
+
 ## [1.7.0] - 2025-11-22
 - Add layer support
 - Add background color picker

public/ads.txt

@@ -0,0 +1 @@
+google.com, pub-3715260871588949, DIRECT, f08c47fec0942fa0

public/robots.txt

@@ -0,0 +1,3 @@
+User-agent: *
+Allow: /
+Sitemap: https://spritesheetgenerator.online/sitemap.xml

public/sitemap.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset
+      xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
+            http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">
+
+<url>
+  <loc>https://spritesheetgenerator.online/</loc>
+  <lastmod>2025-11-26T15:50:00+00:00</lastmod>
+</url>
+<url>
+  <loc>https://spritesheetgenerator.online/about</loc>
+  <lastmod>2025-11-26T15:50:00+00:00</lastmod>
+</url>
+<url>
+  <loc>https://spritesheetgenerator.online/contact</loc>
+  <lastmod>2025-11-26T15:50:00+00:00</lastmod>
+</url>
+<url>
+  <loc>https://spritesheetgenerator.online/privacy-policy</loc>
+  <lastmod>2025-11-26T15:50:00+00:00</lastmod>
+</url>
+<url>
+  <loc>https://spritesheetgenerator.online/blog</loc>
+  <lastmod>2025-11-26T15:50:00+00:00</lastmod>
+</url>
+<url>
+  <loc>https://spritesheetgenerator.online/blog/why-pixel-art</loc>
+  <lastmod>2025-11-26T15:50:00+00:00</lastmod>
+</url>
+<url>
+  <loc>https://spritesheetgenerator.online/blog/welcome</loc>
+  <lastmod>2025-11-26T15:50:00+00:00</lastmod>
+</url>
+<url>
+  <loc>https://spritesheetgenerator.online/faq</loc>
+  <lastmod>2025-11-26T19:37:00+00:00</lastmod>
+</url>
+
+
+</urlset>

src/App.vue

@@ -1,182 +1,67 @@
 <template>
-  <div class="min-h-screen p-3 sm:p-6 bg-gradient-to-br from-gray-50 to-gray-100 dark:from-gray-900 dark:to-gray-800 transition-colors duration-300">
-    <div class="max-w-7xl mx-auto">
-      <div class="flex flex-col sm:flex-row justify-between items-center mb-4 sm:mb-8 gap-2">
-        <h1 class="text-2xl sm:text-4xl font-bold text-gray-900 dark:text-white tracking-tight text-center sm:text-left">Spritesheet generator</h1>
+  <div class="min-h-screen flex flex-col p-4 sm:p-8 bg-slate-50 dark:bg-gray-950 transition-colors duration-300" :class="{ 'lg:h-screen': layers.some(l => l.sprites.length) && $route.name === 'home' }">
+    <!-- Decorative gradient blur in top-right corner -->
+    <div class="fixed top-0 right-0 w-[600px] h-[600px] bg-gradient-to-bl from-blue-400/40 via-purple-400/30 to-transparent dark:from-blue-400/30 dark:via-purple-400/20 blur-3xl pointer-events-none -translate-y-32 translate-x-32"></div>
+    <div class="flex flex-col flex-1" :class="{ 'lg:overflow-hidden': layers.some(l => l.sprites.length) && $route.name === 'home' }">
+      <header class="mb-6 sm:mb-8">
+        <div class="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-6 mb-6">
+          <div class="text-center sm:text-left w-full sm:w-auto">
+            <router-link to="/" class="block group" title="Spritesheet Generator - Create professional spritesheets" aria-label="Go to homepage">
+              <span class="inline-block text-3xl sm:text-4xl lg:text-5xl font-extrabold text-transparent bg-clip-text bg-gradient-to-r from-gray-900 to-gray-700 dark:from-white dark:to-gray-300 tracking-tight mb-2 sm:mb-3 group-hover:opacity-80 transition-opacity">Spritesheet generator</span>
+            </router-link>
+            <p class="text-sm sm:text-base text-gray-600 dark:text-gray-400 font-medium">Create professional spritesheets for your game development projects</p>
+          </div>
+          <div class="flex flex-col items-center sm:items-end gap-3 w-full sm:w-auto">
+            <nav class="flex flex-wrap items-center justify-center sm:justify-end gap-2 sm:gap-3">
+              <a href="https://gitea.adhd.sh/root/spritesheet-generator" target="_blank" rel="noopener noreferrer" class="btn btn-secondary hover:shadow-md" data-rybbit-event="source-link" title="View source code on Gitea" aria-label="View source code repository">
+                <i class="fab fa-github"></i>
+                <span class="font-medium">Source</span>
+              </a>
+              <a href="https://discord.gg/JTev3nzeDa" target="_blank" rel="noopener noreferrer" class="btn btn-secondary hover:shadow-md" data-rybbit-event="discord-link" title="Join our Discord community" aria-label="Join Discord server">
+                <i class="fab fa-discord"></i>
+                <span class="font-medium">Discord</span>
+              </a>
+              <a href="#" @click.prevent="openHelpModal" class="btn btn-secondary hover:shadow-md" data-rybbit-event="help-link" title="Get help and documentation" aria-label="Open help modal">
+                <i class="fas fa-question-circle"></i>
+                <span class="font-medium">Help</span>
+              </a>
+              <a href="#" @click.prevent="openFeedbackModal" class="btn btn-secondary hover:shadow-md" data-rybbit-event="feedback-link" title="Share your feedback with us" aria-label="Open feedback modal">
+                <i class="fas fa-comment-dots"></i>
+                <span class="font-medium">Feedback</span>
+              </a>
               <dark-mode-toggle />
-      </div>
-      <div class="flex flex-wrap justify-center gap-4 mb-4 sm:mb-8">
-        <a href="https://gitea.adhd.sh/root/spritesheet-generator" target="_blank" class="text-blue-500 hover:text-blue-600 dark:text-blue-400 dark:hover:text-blue-300 transition-colors" data-rybbit-event="source-link"> <i class="fab fa-github"></i> Source </a>
-        <a href="https://discord.gg/JTev3nzeDa" target="_blank" class="text-blue-500 hover:text-blue-600 dark:text-blue-400 dark:hover:text-blue-300 transition-colors" data-rybbit-event="discord-link"> <i class="fab fa-discord"></i> Discord </a>
-        <a href="#" @click.prevent="openHelpModal" class="text-blue-500 hover:text-blue-600 dark:text-blue-400 dark:hover:text-blue-300 transition-colors" data-rybbit-event="help-link"> <i class="fas fa-question-circle"></i> Help </a>
-        <a href="#" @click.prevent="openFeedbackModal" class="text-blue-500 hover:text-blue-600 dark:text-blue-400 dark:hover:text-blue-300 transition-colors" data-rybbit-event="feedback-link"> <i class="fas fa-comment-dots"></i> Feedback </a>
-      </div>
-      <div class="bg-white dark:bg-gray-800 rounded-2xl shadow-soft dark:shadow-gray-900/30 p-4 sm:p-8 transition-colors duration-300">
-        <div class="flex flex-col sm:flex-row justify-between items-center mb-4 sm:mb-6 gap-3">
-          <h2 class="text-xl font-semibold text-gray-800 dark:text-gray-100">Upload sprites</h2>
-          <button
-            @click="openJSONImportDialog"
-            class="w-full sm:w-auto px-4 py-2 bg-indigo-500 hover:bg-indigo-600 dark:bg-indigo-600 dark:hover:bg-indigo-700 text-white font-medium rounded-lg transition-colors flex items-center justify-center sm:justify-start space-x-2"
-            data-rybbit-event="import-json"
-          >
-            <i class="fas fa-file-import"></i>
-            <span>Import JSON</span>
-          </button>
-        </div>
-        <file-uploader @upload-sprites="handleSpritesUpload" />
-        <input ref="jsonFileInput" type="file" accept=".json,application/json" class="hidden" @change="handleJSONFileChange" />
-        <div v-if="!visibleLayers.some(l => l.sprites.length)" class="mt-8">
-          <div class="mt-2 leading-relaxed space-y-2">
-            <p>Create spritesheets for your game development and animation projects with our completely free, open-source spritesheet generator.</p>
-            <p>This powerful online tool lets you upload individual sprite images and automatically arrange them into optimized sprite sheets with customizable layouts - perfect for indie developers, animators, and studios of any size.</p>
-            <p class="font-bold text-2xl pb-3 pt-2">How it works:</p>
-            <video controls playsinline class="w-full h-full object-contain rounded-lg shadow-md" title="Spritesheet generator tutorial" aria-label="Spritesheet generator tutorial">
-              <source src="@/assets/tut2.mp4" type="video/mp4" />
-            </video>
+            </nav>
+            <div class="flex flex-wrap items-center justify-center sm:justify-end gap-3 sm:gap-4 text-xs sm:text-sm font-medium text-gray-600 dark:text-gray-400">
+              <router-link to="/" class="hover:text-gray-900 dark:hover:text-white transition-colors whitespace-nowrap" title="Spritesheet Generator Home" aria-label="Navigate to home page">Home</router-link>
+              <router-link to="/blog" class="hover:text-gray-900 dark:hover:text-white transition-colors whitespace-nowrap" title="Read our blog posts" aria-label="Navigate to blog">Blog</router-link>
+              <router-link to="/about" class="hover:text-gray-900 dark:hover:text-white transition-colors whitespace-nowrap" title="Learn more about us" aria-label="Navigate to about page">About Us</router-link>
+              <router-link to="/contact" class="hover:text-gray-900 dark:hover:text-white transition-colors whitespace-nowrap" title="Get in touch with us" aria-label="Navigate to contact page">Contact</router-link>
+              <router-link to="/faq" class="hover:text-gray-900 dark:hover:text-white transition-colors whitespace-nowrap" title="Frequently Asked Questions" aria-label="Navigate to FAQ page">FAQ</router-link>
+              <router-link to="/privacy-policy" class="hover:text-gray-900 dark:hover:text-white transition-colors whitespace-nowrap" title="Read our privacy policy" aria-label="Navigate to privacy policy">Privacy Policy</router-link>
+              <a href="/sitemap.xml" target="_blank" rel="noopener noreferrer" class="hover:text-gray-900 dark:hover:text-white transition-colors whitespace-nowrap" title="View XML sitemap" aria-label="View sitemap">Sitemap</a>
             </div>
           </div>
+        </div>
+      </header>
 
-        <div v-if="visibleLayers.some(l => l.sprites.length)" class="mt-8">
-          <div class="flex flex-col gap-3 mb-4">
-            <div class="flex items-center gap-2 flex-wrap">
-              <span class="text-gray-700 dark:text-gray-200 font-medium">Layers</span>
-              <button @click="addLayer()" class="px-3 py-1.5 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-800 dark:text-gray-100 rounded">Add</button>
-            </div>
-            <div class="flex flex-wrap gap-2">
-              <div v-for="layer in layers" :key="layer.id" class="flex items-center gap-2 px-2 py-1 rounded border border-gray-200 dark:border-gray-600" :class="{ 'ring-2 ring-blue-500': layer.id === activeLayerId }">
-                <button @click="activeLayerId = layer.id" class="px-2 py-0.5 rounded bg-blue-50 dark:bg-blue-900/30 text-blue-800 dark:text-blue-200">{{ layer.name }}</button>
-                <label class="flex items-center gap-1 text-xs text-gray-600 dark:text-gray-300"> <input type="checkbox" v-model="layer.visible" /> Visible </label>
-                <button @click="moveLayer(layer.id, 'up')" class="text-xs px-1.5 py-0.5 bg-gray-100 dark:bg-gray-700 rounded">↑</button>
-                <button @click="moveLayer(layer.id, 'down')" class="text-xs px-1.5 py-0.5 bg-gray-100 dark:bg-gray-700 rounded">↓</button>
-                <button v-if="layers.length > 1" @click="removeLayer(layer.id)" class="text-xs px-1.5 py-0.5 bg-red-100 dark:bg-red-900/30 text-red-700 dark:text-red-200 rounded">Remove</button>
-              </div>
-            </div>
-          </div>
-          <div class="flex flex-wrap items-center justify-center sm:justify-start gap-3 sm:gap-6 mb-6 sm:mb-8">
-            <div class="flex items-center space-x-1">
-              <label for="columns" class="text-gray-700 dark:text-gray-200 font-medium">Columns:</label>
-              <input
-                id="columns"
-                type="number"
-                v-model.number="columns"
-                min="1"
-                max="10"
-                class="w-20 px-3 py-2 border border-gray-200 dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 rounded-lg focus:ring-2 focus:ring-blue-500 dark:focus:ring-blue-400 focus:border-transparent outline-none transition-all text-base"
-              />
-            </div>
+      <Breadcrumbs />
 
-            <div class="flex items-center space-x-1">
-              <label class="text-gray-700 dark:text-gray-200 font-medium flex items-center gap-1">
-                <input type="checkbox" v-model="settingsStore.manualCellSizeEnabled" class="w-4 h-4" />
-                Cell size:
-              </label>
-              <input
-                v-if="settingsStore.manualCellSizeEnabled"
-                type="number"
-                v-model.number="settingsStore.manualCellWidth"
-                min="1"
-                max="2048"
-                class="w-20 px-2 py-1 border border-gray-200 dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 rounded-lg focus:ring-2 focus:ring-blue-500 dark:focus:ring-blue-400 focus:border-transparent outline-none transition-all text-sm"
-                placeholder="Width"
-              />
-              <span v-if="settingsStore.manualCellSizeEnabled" class="text-gray-600 dark:text-gray-300">×</span>
-              <input
-                v-if="settingsStore.manualCellSizeEnabled"
-                type="number"
-                v-model.number="settingsStore.manualCellHeight"
-                min="1"
-                max="2048"
-                class="w-20 px-2 py-1 border border-gray-200 dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100 rounded-lg focus:ring-2 focus:ring-blue-500 dark:focus:ring-blue-400 focus:border-transparent outline-none transition-all text-sm"
-                placeholder="Height"
-              />
-              <span v-if="!settingsStore.manualCellSizeEnabled" class="text-gray-600 dark:text-gray-300">{{ cellSize.width }} × {{ cellSize.height }}px</span>
+      <router-view />
     </div>
 
-            <!-- Add mass position buttons -->
-            <div class="flex flex-wrap items-center justify-center gap-2">
-              <button @click="alignSprites('left')" class="p-3 sm:p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors" title="Align Left" data-rybbit-event="align-left">
-                <i class="fas fa-arrow-left"></i>
-              </button>
-              <button @click="alignSprites('center')" class="p-3 sm:p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors" title="Align Center" data-rybbit-event="align-center">
-                <i class="fas fa-arrows-left-right"></i>
-              </button>
-              <button @click="alignSprites('right')" class="p-3 sm:p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors" title="Align Right" data-rybbit-event="align-right">
-                <i class="fas fa-arrow-right"></i>
-              </button>
-              <button @click="alignSprites('top')" class="p-3 sm:p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors" title="Align Top" data-rybbit-event="align-top">
-                <i class="fas fa-arrow-up"></i>
-              </button>
-              <button @click="alignSprites('middle')" class="p-3 sm:p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors" title="Align Middle" data-rybbit-event="align-middle">
-                <i class="fas fa-arrows-up-down"></i>
-              </button>
-              <button @click="alignSprites('bottom')" class="p-3 sm:p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors" title="Align Bottom" data-rybbit-event="align-bottom">
-                <i class="fas fa-arrow-down"></i>
-              </button>
-            </div>
-
-            <button @click="downloadSpritesheet" class="w-full sm:w-auto px-6 py-3 sm:py-2.5 bg-blue-500 hover:bg-blue-600 dark:bg-blue-600 dark:hover:bg-blue-700 text-white font-medium rounded-lg transition-colors flex items-center justify-center space-x-2" data-rybbit-event="download-spritesheet">
-              <i class="fas fa-download"></i>
-              <span>Download spritesheet</span>
-            </button>
-
-            <button
-              @click="exportSpritesheetJSON"
-              class="w-full sm:w-auto px-6 py-3 sm:py-2.5 bg-purple-500 hover:bg-purple-600 dark:bg-purple-600 dark:hover:bg-purple-700 text-white font-medium rounded-lg transition-colors flex items-center justify-center space-x-2"
-              data-rybbit-event="export-json"
-            >
-              <i class="fas fa-file-code"></i>
-              <span>Export as JSON</span>
-            </button>
-
-            <button @click="openGifFpsModal" class="w-full sm:w-auto px-6 py-3 sm:py-2.5 bg-amber-500 hover:bg-amber-600 dark:bg-amber-600 dark:hover:bg-amber-700 text-white font-medium rounded-lg transition-colors flex items-center justify-center space-x-2" data-rybbit-event="download-gif">
-              <i class="fas fa-film"></i>
-              <span>Download as GIF</span>
-            </button>
-
-            <button @click="downloadAsZip" class="w-full sm:w-auto px-6 py-3 sm:py-2.5 bg-teal-500 hover:bg-teal-600 dark:bg-teal-600 dark:hover:bg-teal-700 text-white font-medium rounded-lg transition-colors flex items-center justify-center space-x-2" data-rybbit-event="download-zip">
-              <i class="fas fa-file-archive"></i>
-              <span>Download as ZIP</span>
-            </button>
-
-            <button @click="openPreviewModal" class="w-full sm:w-auto px-6 py-3 sm:py-2.5 bg-green-500 hover:bg-green-600 dark:bg-green-600 dark:hover:bg-green-700 text-white font-medium rounded-lg transition-colors flex items-center justify-center space-x-2" data-rybbit-event="preview-animation">
-              <i class="fas fa-play"></i>
-              <span>Preview animation</span>
-            </button>
-          </div>
-          <sprite-canvas
-            :layers="layers"
-            :active-layer-id="activeLayerId"
-            :columns="columns"
-            @update-sprite="updateSpritePosition"
-            @update-sprite-cell="updateSpriteCell"
-            @remove-sprite="removeSprite"
-            @replace-sprite="replaceSprite"
-            @add-sprite="addSprite"
-            @add-sprite-with-resize="addSpriteWithResize"
-          />
-        </div>
-      </div>
-    </div>
-
-    <Modal :is-open="isPreviewModalOpen" @close="closePreviewModal" title="Animation preview">
-      <sprite-preview :layers="layers" :active-layer-id="activeLayerId" :columns="columns" @update-sprite="updateSpritePosition" />
-    </Modal>
-
     <HelpModal :is-open="isHelpModalOpen" @close="closeHelpModal" />
     <FeedbackModal :is-open="isFeedbackModalOpen" @close="closeFeedbackModal" />
-    <SpritesheetSplitter :is-open="isSpritesheetSplitterOpen" :image-url="spritesheetImageUrl" :image-file="spritesheetImageFile" @close="closeSpritesheetSplitter" @split="handleSplitSpritesheet" />
-    <GifFpsModal :is-open="isGifFpsModalOpen" @close="closeGifFpsModal" @confirm="downloadAsGif" :default-fps="10" />
 
     <!-- One-time feedback popup -->
-    <div v-if="showFeedbackPopup" class="fixed inset-0 backdrop-blur-sm flex items-center justify-center z-50">
-      <div class="bg-white dark:bg-gray-800 rounded-xl p-6 max-w-md mx-4 shadow-xl border border-gray-600">
+    <div v-if="showFeedbackPopup" class="fixed inset-0 z-50 flex items-center justify-center backdrop-blur-sm">
+      <div class="max-w-md p-6 mx-4 bg-white dark:bg-gray-800 border border-gray-600 rounded-xl shadow-xl">
         <div class="text-center">
-          <div class="text-4xl mb-4">💬</div>
-          <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-3">Help us improve!</h3>
-          <p class="text-gray-600 dark:text-gray-300 mb-6">We'd love to hear your thoughts about the spritesheet generator. Would you like to share your feedback?</p>
-          <div class="flex gap-3 justify-center">
-            <button @click="handleFeedbackPopupResponse(false)" class="px-4 py-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 transition-colors">Maybe later</button>
-            <button @click="handleFeedbackPopupResponse(true)" class="px-6 py-2 bg-blue-500 hover:bg-blue-600 text-white font-medium rounded-lg transition-colors">Share feedback</button>
+          <div class="mb-4 text-4xl">💬</div>
+          <h3 class="mb-3 text-lg font-semibold text-gray-900 dark:text-white">Help us improve!</h3>
+          <p class="mb-6 text-gray-600 dark:text-gray-300">We'd love to hear your thoughts about the Spritesheet generator. Would you like to share your feedback?</p>
+          <div class="flex justify-center gap-3">
+            <button @click="handleFeedbackPopupResponse(false)" class="px-4 py-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 transition-colors cursor-pointer">Maybe later</button>
+            <button @click="handleFeedbackPopupResponse(true)" class="px-6 py-2 font-medium text-white bg-gray-700 hover:bg-gray-800 rounded-lg transition-colors cursor-pointer">Share feedback</button>
           </div>
         </div>
       </div>
@@ -185,108 +70,20 @@
 </template>
 
 <script setup lang="ts">
-  import { ref, onMounted, toRef, computed } from 'vue';
-  import FileUploader from './components/FileUploader.vue';
-  import SpriteCanvas from './components/SpriteCanvas.vue';
-  import Modal from './components/utilities/Modal.vue';
-  import SpritePreview from './components/SpritePreview.vue';
+  import { ref, onMounted } from 'vue';
+  import { RouterView, RouterLink } from 'vue-router';
   import HelpModal from './components/HelpModal.vue';
   import FeedbackModal from './components/FeedbackModal.vue';
-  import SpritesheetSplitter from './components/SpritesheetSplitter.vue';
-  import GifFpsModal from './components/GifFpsModal.vue';
   import DarkModeToggle from './components/utilities/DarkModeToggle.vue';
-  import { useExportLayers } from './composables/useExportLayers';
+  import Breadcrumbs from './components/Breadcrumbs.vue';
   import { useLayers } from './composables/useLayers';
-  import { getMaxDimensionsAcrossLayers } from './composables/useLayers';
-  import { useSettingsStore } from './stores/useSettingsStore';
-  import { calculateNegativeSpacing } from './composables/useNegativeSpacing';
-  import type { SpriteFile } from './types/sprites';
 
-  const settingsStore = useSettingsStore();
-  const { layers, visibleLayers, activeLayer, activeLayerId, columns, updateSpritePosition, updateSpriteCell, removeSprite, replaceSprite, addSprite, addSpriteWithResize, processImageFiles, alignSprites, addLayer, removeLayer, moveLayer } = useLayers();
+  const { layers, hasSprites } = useLayers();
 
-  const { downloadSpritesheet, exportSpritesheetJSON, importSpritesheetJSON, downloadAsGif, downloadAsZip } = useExportLayers(
-    layers,
-    columns,
-    toRef(settingsStore, 'negativeSpacingEnabled'),
-    activeLayerId,
-    toRef(settingsStore, 'backgroundColor'),
-    toRef(settingsStore, 'manualCellSizeEnabled'),
-    toRef(settingsStore, 'manualCellWidth'),
-    toRef(settingsStore, 'manualCellHeight')
-  );
-
-  const cellSize = computed(() => {
-    if (!layers.value.length) return { width: 0, height: 0 };
-
-    // If manual cell size is enabled, use the manual values
-    if (settingsStore.manualCellSizeEnabled) {
-      return { width: settingsStore.manualCellWidth, height: settingsStore.manualCellHeight };
-    }
-
-    // Otherwise, calculate based on max dimensions
-    const { maxWidth, maxHeight } = getMaxDimensionsAcrossLayers(visibleLayers.value);
-    const allSprites = visibleLayers.value.flatMap(l => l.sprites);
-    const negativeSpacing = calculateNegativeSpacing(allSprites, settingsStore.negativeSpacingEnabled);
-    return { width: maxWidth + negativeSpacing, height: maxHeight + negativeSpacing };
-  });
-  const isPreviewModalOpen = ref(false);
   const isHelpModalOpen = ref(false);
   const isFeedbackModalOpen = ref(false);
-  const isSpritesheetSplitterOpen = ref(false);
-  const isGifFpsModalOpen = ref(false);
-  const jsonFileInput = ref<HTMLInputElement | null>(null);
-  const spritesheetImageUrl = ref('');
-  const spritesheetImageFile = ref<File | null>(null);
   const showFeedbackPopup = ref(false);
 
-  const handleSpritesUpload = async (files: File[]) => {
-    const jsonFile = files.find(file => file.type === 'application/json' || file.name.endsWith('.json'));
-
-    if (jsonFile) {
-      try {
-        await importSpritesheetJSON(jsonFile);
-      } catch (error) {
-        console.error('Error importing JSON:', error);
-        alert('Failed to import JSON file. Please check the file format.');
-      }
-      return;
-    }
-
-    if (files.length === 1 && files[0].type.startsWith('image/')) {
-      const file = files[0];
-      const url = URL.createObjectURL(file);
-
-      const img = new Image();
-      img.onload = () => {
-        if (confirm('This looks like it might be a spritesheet. Would you like to split it into individual sprites?')) {
-          spritesheetImageUrl.value = url;
-          spritesheetImageFile.value = file;
-          isSpritesheetSplitterOpen.value = true;
-          return;
-        }
-
-        processImageFiles([file]);
-      };
-      img.src = url;
-      return;
-    }
-
-    processImageFiles(files);
-  };
-
-  const openPreviewModal = () => {
-    if (!visibleLayers.value.some(l => l.sprites.length > 0)) {
-      alert('Please upload or import sprites to preview an animation.');
-      return;
-    }
-    isPreviewModalOpen.value = true;
-  };
-
-  const closePreviewModal = () => {
-    isPreviewModalOpen.value = false;
-  };
-
   const openHelpModal = () => {
     isHelpModalOpen.value = true;
   };
@@ -303,49 +100,6 @@
     isFeedbackModalOpen.value = false;
   };
 
-  const closeSpritesheetSplitter = () => {
-    isSpritesheetSplitterOpen.value = false;
-    if (spritesheetImageUrl.value) {
-      URL.revokeObjectURL(spritesheetImageUrl.value);
-      spritesheetImageUrl.value = '';
-    }
-    spritesheetImageFile.value = null;
-  };
-
-  const openGifFpsModal = () => {
-    if (!visibleLayers.value.some(l => l.sprites.length > 0)) {
-      alert('Please upload or import sprites before generating a GIF.');
-      return;
-    }
-    isGifFpsModalOpen.value = true;
-  };
-
-  const closeGifFpsModal = () => {
-    isGifFpsModalOpen.value = false;
-  };
-
-  const handleSplitSpritesheet = (spriteFiles: SpriteFile[]) => {
-    processImageFiles(spriteFiles.map(s => s.file));
-  };
-
-  const openJSONImportDialog = () => {
-    jsonFileInput.value?.click();
-  };
-
-  const handleJSONFileChange = async (event: Event) => {
-    const input = event.target as HTMLInputElement;
-    if (input.files && input.files.length > 0) {
-      const jsonFile = input.files[0];
-      try {
-        await importSpritesheetJSON(jsonFile);
-      } catch (error) {
-        console.error('Error importing JSON:', error);
-        alert('Failed to import JSON file. Please check the file format.');
-      }
-      if (jsonFileInput.value) jsonFileInput.value.value = '';
-    }
-  };
-
   onMounted(() => {
     const hasShownFeedbackPopup = localStorage.getItem('hasShownFeedbackPopup');
     if (!hasShownFeedbackPopup) {

src/assets/main.css

@@ -4,9 +4,6 @@
 /* Dark mode transition */
 html,
 body {
-  transition:
-    background-color 0.3s ease,
-    color 0.3s ease;
   -webkit-tap-highlight-color: transparent; /* Remove tap highlight on mobile */
 }
 
@@ -37,3 +34,142 @@ html.dark {
     touch-action: manipulation; /* Improve touch responsiveness */
   }
 }
+
+@layer components {
+  .btn {
+    @apply inline-flex items-center justify-center gap-2 px-4 py-2 text-sm rounded-lg transition-all cursor-pointer font-medium focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed active:scale-95;
+  }
+
+  .btn-primary {
+    @apply bg-gray-900 text-white hover:bg-gray-800 dark:bg-gray-100 dark:text-gray-900 dark:hover:bg-gray-200;
+  }
+
+  .btn-secondary {
+    @apply bg-white text-gray-700 border border-gray-200 hover:bg-gray-50 hover:shadow-sm dark:bg-gray-800 dark:text-gray-200 dark:border-gray-700 dark:hover:bg-gray-700;
+  }
+
+  .btn-ghost {
+    @apply text-gray-600 hover:bg-gray-100 dark:text-gray-400 dark:hover:bg-gray-800;
+  }
+
+  .btn-danger {
+    @apply text-red-600 hover:bg-red-50 dark:text-red-400 dark:hover:bg-red-900/30;
+  }
+
+  .btn-dark {
+    @apply bg-gray-700 text-white hover:bg-gray-800 dark:bg-gray-600 dark:hover:bg-gray-700;
+  }
+
+  .btn-sm {
+    @apply px-3 py-1.5 text-xs;
+  }
+
+  .btn-md {
+    @apply px-4 py-2 text-sm;
+  }
+
+  .btn-icon {
+    @apply p-2;
+  }
+
+  .btn-icon-sm {
+    @apply p-1.5;
+  }
+
+  .btn-icon-xs {
+    @apply p-1;
+  }
+
+  .input-field {
+    @apply px-2 py-1 text-sm border border-gray-300 rounded outline-none focus:ring-2 focus:ring-gray-500 dark:border-gray-600 dark:bg-gray-700 dark:text-gray-100;
+  }
+
+  .card {
+    @apply bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg;
+  }
+
+  /* Custom prose styles for blog content */
+  .prose {
+    @apply text-gray-700 dark:text-gray-300 leading-7;
+  }
+
+  .prose h1 {
+    @apply text-4xl font-bold text-gray-900 dark:text-white mb-4 mt-0;
+  }
+
+  .prose h2 {
+    @apply text-3xl font-bold text-gray-900 dark:text-white mt-8 mb-4;
+  }
+
+  .prose h3 {
+    @apply text-2xl font-bold text-gray-900 dark:text-white mt-6 mb-3;
+  }
+
+  .prose h4 {
+    @apply text-xl font-bold text-gray-900 dark:text-white mt-4 mb-2;
+  }
+
+  .prose p {
+    @apply text-gray-700 dark:text-gray-300 mb-4 leading-7;
+  }
+
+  .prose a {
+    @apply text-blue-600 dark:text-blue-400 underline hover:text-blue-800 dark:hover:text-blue-300;
+  }
+
+  .prose strong {
+    @apply text-gray-900 dark:text-white font-semibold;
+  }
+
+  .prose em {
+    @apply italic;
+  }
+
+  .prose code {
+    @apply text-sm font-mono bg-gray-100 dark:bg-gray-800 text-gray-900 dark:text-gray-100 px-1 py-0.5 rounded;
+  }
+
+  .prose pre {
+    @apply bg-gray-100 dark:bg-gray-800 text-gray-800 dark:text-gray-200 p-4 rounded-lg overflow-x-auto mb-4;
+  }
+
+  .prose pre code {
+    @apply bg-transparent p-0;
+  }
+
+  .prose ul {
+    @apply list-disc pl-6 mb-4 text-gray-700 dark:text-gray-300;
+  }
+
+  .prose ol {
+    @apply list-decimal pl-6 mb-4 text-gray-700 dark:text-gray-300;
+  }
+
+  .prose li {
+    @apply mb-2 leading-7;
+  }
+
+  .prose blockquote {
+    @apply border-l-4 border-gray-300 dark:border-gray-600 pl-4 italic text-gray-600 dark:text-gray-400 my-4;
+  }
+
+  .prose img {
+    @apply rounded-lg shadow-md my-6;
+  }
+
+  .prose hr {
+    @apply border-gray-300 dark:border-gray-700 my-8;
+  }
+
+  .prose table {
+    @apply border-collapse w-full my-6;
+  }
+
+  .prose th {
+    @apply bg-gray-100 dark:bg-gray-800 p-2 text-left font-semibold border border-gray-300 dark:border-gray-700;
+  }
+
+  .prose td {
+    @apply border border-gray-300 dark:border-gray-700 p-2;
+  }
+}

src/blog/welcome.md

@@ -0,0 +1,23 @@
+---
+title: 'Welcome to the Spritesheet generator blog'
+date: '2025-11-26'
+description: 'This is the first post on our new blog. Learn about how we built this tool.'
+image: '/blog/1.png'
+---
+
+## Welcome!
+
+We are excited to launch our new blog. Here we will share updates, tutorials, and tips on how to get the most out of the Sprite Sheet Generator.
+
+### What is this tool?
+
+This tool allows you to easily combine multiple images into a single sprite sheet. It's perfect for game developers and web designers.
+
+### Features
+
+- Drag and drop interface
+- Customizable grid size
+- Export to PNG and JSON
+- Dark mode support
+
+Stay tuned for more updates!

src/blog/why-pixel-art.md

@@ -0,0 +1,97 @@
+---
+title: 'Why pixel art without proper spritesheet tools is holding you back'
+date: '2025-11-26'
+description: 'Pixel art is already challenging. Why make it harder?'
+image: '/blog/2.jpg'
+---
+
+If you've worked on game projects with pixel art, you know the pain: managing dozens of individual sprite files, keeping track of animation frames, and organizing everything into a format your game engine can use. It's tedious, error-prone, and kills your creative flow.
+
+## The pixel art workflow nightmare
+
+### The zoom dance problem
+
+Pixel artists constantly switch between magnified and unmagnified views. At 500% zoom, you place individual pixels. At 100%, you check if they create the intended effect. You need to see both the micro details and the macro picture—but you can't do both at once.
+
+This back-and-forth is exhausting, especially when you discover a single shade-too-dark pixel throws off your entire composition.
+
+### File management chaos
+
+Creating a character with idle, walking, running, jumping, and attacking animations? Each with 8-12 frames? That's 40-60+ individual image files for one character.
+
+Managing these manually means:
+
+- Tracking which file belongs to which animation
+- Ensuring consistent sizing across all frames
+- Organizing files in the right sequence
+- Exporting each frame separately
+- Hoping you didn't skip or misname anything
+
+### The multi-tool trap
+
+Many developers juggle multiple applications:
+
+1. Sketch in a drawing program
+2. Refine in a pixel art editor
+3. Export individual frames
+4. Resize in an image editor
+5. Manually arrange in another tool
+6. Export as a spritesheet
+7. Create data files for your game engine
+8. Find an error in frame 23
+9. Start over
+
+One developer described the frustration: the feedback loop was too long. They couldn't see what the finished art would look like until after going through multiple tools. Details that looked great in high-res turned sloppy after conversion.
+
+## Why spritesheets matter
+
+Sprite sheets aren't optional—they're essential for game development:
+
+- **Better performance**: One file instead of 50+ individual image requests
+- **Simpler management**: One file instead of dozens
+- **Proper animation**: Frame data embedded or easily referenced
+- **Optimized memory**: Better texture packing, less wasted space
+
+But creating them manually is painful. You need to calculate optimal layouts, ensure consistent spacing, maintain pixel-perfect alignment, and generate metadata. One mistake breaks your animations.
+
+## The solution: dedicated spritesheet generators
+
+This is where [spritesheetgenerator.online](https://spritesheetgenerator.online) changes everything.
+
+Instead of the multi-tool nightmare, you get:
+
+1. **Upload sprites**: Drag and drop your images
+2. **Automatic arrangement**: Intelligent optimal layout
+3. **Preview animations**: See your work in real-time
+4. **Export everything**: Spritesheet image and data files ready to use
+
+### Why this matters
+
+**Faster iteration**: Change frame 7? Re-upload and regenerate in seconds instead of minutes.
+
+**Consistent results**: No more alignment worries. The tool handles technical details.
+
+**Immediate preview**: See frames flow together, check light-blending in motion, verify timing—all before exporting.
+
+**Professional output**: Properly formatted spritesheets that drop right into your game engine.
+
+### Free and accessible
+
+Being browser-based means:
+
+- No installation required
+- Works on any device
+- No subscriptions or licenses
+- Access from anywhere
+
+For indie developers, hobbyists, or students with limited budgets, this is game-changing.
+
+## The bottom line
+
+Pixel art requires precision and patience. That's part of what makes it rewarding. But there's no reason to add unnecessary complexity with manual file management and multi-tool workflows.
+
+Your creative energy should go into placing pixels with intention and crafting smooth animations—not file wrangling.
+
+Using a proper spritesheet generator doesn't make you less of an artist. It makes you a smarter one.
+
+The pixel art is hard enough. The workflow doesn't have to be.

src/components/Breadcrumbs.vue

@@ -0,0 +1,63 @@
+<script setup lang="ts">
+  import { computed } from 'vue';
+  import { useRoute } from 'vue-router';
+  import { RouterLink } from 'vue-router';
+
+  const route = useRoute();
+
+  interface BreadcrumbItem {
+    name: string;
+    path: string;
+  }
+
+  const breadcrumbs = computed<BreadcrumbItem[]>(() => {
+    const items: BreadcrumbItem[] = [{ name: 'Home', path: '/' }];
+
+    // Map route names to breadcrumb labels
+    const routeLabels: Record<string, string> = {
+      'blog-overview': 'Blog',
+      'blog-detail': 'Blog',
+      about: 'About Us',
+      contact: 'Contact',
+      'privacy-policy': 'Privacy Policy',
+      faq: 'FAQ',
+    };
+
+    if (route.name && route.name !== 'home') {
+      const routeName = route.name.toString();
+
+      if (routeName === 'blog-detail') {
+        // For blog detail pages, add Blog first, then the post title
+        items.push({ name: 'Blog', path: '/blog' });
+
+        // Get the post title from route meta or params if available
+        const postTitle = (route.meta.title as string) || 'Article';
+        items.push({ name: postTitle, path: route.path });
+      } else if (routeLabels[routeName]) {
+        items.push({ name: routeLabels[routeName], path: route.path });
+      }
+    }
+
+    return items;
+  });
+
+  const shouldShowBreadcrumbs = computed(() => {
+    return breadcrumbs.value.length > 1 && route.name !== 'home';
+  });
+</script>
+
+<template>
+  <nav v-if="shouldShowBreadcrumbs" aria-label="Breadcrumb" class="mb-4">
+    <ol class="flex items-center gap-2 text-sm text-gray-600 dark:text-gray-400">
+      <li v-for="(item, index) in breadcrumbs" :key="item.path" class="flex items-center gap-2">
+        <RouterLink v-if="index < breadcrumbs.length - 1" :to="item.path" class="hover:text-gray-900 dark:hover:text-white transition-colors" :aria-label="`Navigate to ${item.name}`">
+          {{ item.name }}
+        </RouterLink>
+        <span v-else class="font-medium text-gray-900 dark:text-white" aria-current="page">
+          {{ item.name }}
+        </span>
+        <i v-if="index < breadcrumbs.length - 1" class="fas fa-chevron-right text-xs text-gray-400"></i>
+      </li>
+    </ol>
+  </nav>
+</template>

src/components/FileUploader.vue

@@ -1,9 +1,9 @@
 <template>
   <div
-    class="border-2 border-dashed rounded-xl p-4 sm:p-8 text-center transition-all duration-200"
+    class="relative border-3 border-dashed rounded-2xl p-8 sm:p-12 text-center transition-all duration-300 cursor-pointer group overflow-hidden"
     :class="{
-      'border-blue-300 bg-blue-50 dark:border-blue-500 dark:bg-blue-900/30': isDragging,
-      'border-gray-200 hover:border-blue-300 hover:bg-gray-50 dark:border-gray-600 dark:hover:border-blue-500 dark:hover:bg-gray-700/50': !isDragging,
+      'border-blue-400 bg-blue-50 dark:border-blue-400 dark:bg-blue-900/40 scale-[1.02]': isDragging,
+      'border-gray-300 bg-gray-50/50 hover:border-blue-400 hover:bg-blue-50/80 dark:border-gray-600 dark:bg-gray-800/30 dark:hover:border-blue-400 dark:hover:bg-blue-900/30': !isDragging,
     }"
     @dragenter.prevent="isDragging = true"
     @dragleave.prevent="isDragging = false"
@@ -12,20 +12,36 @@
     @click="openFileDialog"
     data-rybbit-event="file-upload-area"
   >
+    <div class="absolute inset-0 bg-blue-400/0 group-hover:bg-blue-400/5 transition-all duration-300"></div>
+
     <input ref="fileInput" type="file" multiple accept="image/*,.json" class="hidden" @change="handleFileChange" />
 
-    <div class="mb-4 sm:mb-6">
-      <img src="@/assets/images/file.svg" alt="File upload" class="w-16 h-16 sm:w-20 sm:h-20 mx-auto mb-2 sm:mb-4 opacity-75 dark:invert" />
+    <div class="relative z-10">
+      <div class="mb-6 transform transition-transform duration-300" :class="isDragging ? 'scale-110' : 'group-hover:scale-105'">
+        <div class="w-20 h-20 sm:w-24 sm:h-24 mx-auto mb-4 bg-blue-100 dark:bg-blue-900/50 rounded-2xl flex items-center justify-center shadow-lg">
+          <i class="fas fa-cloud-upload-alt text-4xl sm:text-5xl text-blue-600 dark:text-blue-400"></i>
+        </div>
       </div>
 
-    <p class="text-lg sm:text-xl font-medium text-gray-700 dark:text-gray-200 mb-2">Drag and drop your sprite images or JSON file here</p>
-    <p class="text-sm text-gray-500 dark:text-gray-400 mb-4 sm:mb-6">or</p>
+      <h3 class="text-xl sm:text-2xl font-bold text-gray-800 dark:text-gray-100 mb-3">
+        <span v-if="isDragging">Drop your files here</span>
+        <span v-else>Upload Your Sprites</span>
+      </h3>
+      <p class="text-base sm:text-lg text-gray-600 dark:text-gray-300 mb-2">Drag and drop sprite images or JSON files</p>
+      <p class="text-sm text-gray-500 dark:text-gray-400 mb-8">Supports PNG, JPG, GIF, and JSON</p>
 
-    <button class="w-full sm:w-auto px-6 py-3 sm:py-2.5 bg-blue-500 hover:bg-blue-600 text-white font-medium rounded-lg transition-colors flex sm:inline-flex items-center justify-center space-x-2 cursor-pointer" data-rybbit-event="select-files">
-      <i class="fas fa-folder-open"></i>
-      <span>Select files</span>
+      <div class="flex items-center justify-center gap-4 mb-6">
+        <div class="h-px flex-1 bg-gray-300 dark:bg-gray-600"></div>
+        <span class="text-xs font-semibold text-gray-500 dark:text-gray-400 uppercase">or</span>
+        <div class="h-px flex-1 bg-gray-300 dark:bg-gray-600"></div>
+      </div>
+
+      <button class="px-8 py-3.5 bg-blue-500 hover:bg-blue-600 dark:bg-blue-600 dark:hover:bg-blue-700 text-white font-semibold rounded-xl shadow-lg hover:shadow-xl transition-all transform hover:scale-105 flex items-center justify-center gap-3 mx-auto" data-rybbit-event="select-files">
+        <i class="fas fa-folder-open text-lg"></i>
+        <span>Browse Files</span>
       </button>
     </div>
+  </div>
 </template>
 
 <script setup lang="ts">

src/components/HelpModal.vue

@@ -23,7 +23,7 @@
 
           <div class="max-w-none text-gray-700 dark:text-gray-300">
             <p class="mb-4 text-base leading-relaxed">Spritesheet generator is a free, open-source tool for creating spritesheets for game development and animation projects. This tool allows you to upload individual sprite images and arrange them into a spritesheet with customizable layout.</p>
-            <p class="mb-4 text-base leading-relaxed">Matrix: root@adhd.sh, Discord: nu11ed</p>
+            <p class="mb-4 text-base leading-relaxed">Matrix: root@adhd.sh, Discord: streetshadow</p>
             <h4 class="mt-6 mb-3 text-lg font-medium text-gray-900 dark:text-gray-100">How to use:</h4>
             <ol class="list-decimal pl-6 space-y-2 mb-4">
               <li>Upload your sprite images by dragging and dropping them or clicking the upload area</li>
@@ -56,6 +56,16 @@
           </p>
 
           <div class="space-y-6">
+            <!-- Ko-fi -->
+            <div class="p-4 bg-gray-50 dark:bg-gray-700 rounded-lg border border-gray-200 dark:border-gray-600">
+              <div class="flex items-center mb-3">
+                <h4 class="text-md font-medium">Ko-fi</h4>
+              </div>
+              <a href="https://ko-fi.com/X8X416D44P" target="_blank" rel="noopener noreferrer" data-rybbit-event="open-kofi">
+                <img height="36" style="border: 0px; height: 36px" src="https://storage.ko-fi.com/cdn/kofi6.png?v=6" alt="Buy Me a Coffee at ko-fi.com" />
+              </a>
+            </div>
+
             <!-- PayPal -->
             <div class="p-4 bg-gray-50 dark:bg-gray-700 rounded-lg border border-gray-200 dark:border-gray-600">
               <div class="flex items-center mb-3">

src/components/SpriteCanvas.vue

@@ -1,60 +1,120 @@
 <template>
-  <div class="p-2 bg-cyan-600 rounded w-full my-4">
-    <p>Developer's tip: Right click a sprite to open the context menu and add, replace or remove sprites.</p>
+  <Teleport to="body">
+    <div v-if="showContextMenu" @click.stop class="fixed bg-white dark:bg-gray-800 border-2 border-gray-300 dark:border-gray-600 rounded-xl shadow-2xl z-50 py-2 min-w-[200px] overflow-hidden" :style="{ left: contextMenuX + 'px', top: contextMenuY + 'px' }">
+      <button @click="addSprite" class="w-full px-5 py-3 text-left hover:bg-blue-50 dark:hover:bg-blue-900/30 text-gray-700 dark:text-gray-200 flex items-center gap-3 transition-colors font-medium">
+        <i class="fas fa-plus text-blue-600 dark:text-blue-400"></i>
+        <span>Add Sprite</span>
+      </button>
+      <button v-if="contextMenuSpriteId" @click="replaceSprite" class="w-full px-5 py-3 text-left hover:bg-purple-50 dark:hover:bg-purple-900/30 text-gray-700 dark:text-gray-200 flex items-center gap-3 transition-colors font-medium">
+        <i class="fas fa-exchange-alt text-purple-600 dark:text-purple-400"></i>
+        <span>Replace Sprite</span>
+      </button>
+      <div v-if="contextMenuSpriteId" class="h-px bg-gray-200 dark:bg-gray-600 my-1"></div>
+      <button v-if="contextMenuSpriteId" @click="removeSprite" class="w-full px-5 py-3 text-left hover:bg-red-50 dark:hover:bg-red-900/30 text-red-600 dark:text-red-400 flex items-center gap-3 transition-colors font-medium">
+        <i class="fas fa-trash"></i>
+        <span>Remove Sprite</span>
+      </button>
     </div>
-  <div class="space-y-4">
-    <div class="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-3 sm:gap-0">
-      <div class="flex flex-col sm:flex-row items-start sm:items-center gap-3 sm:gap-4 w-full sm:w-auto">
-        <div class="flex items-center">
-          <input id="pixel-perfect" type="checkbox" v-model="settingsStore.pixelPerfect" class="mr-2 w-4 h-4" @change="requestDraw" />
-          <label for="pixel-perfect" class="dark:text-gray-200 text-sm sm:text-base">Pixel perfect rendering</label>
+  </Teleport>
+
+  <div class="space-y-6 w-full max-w-full overflow-hidden">
+    <div class="bg-cyan-50 dark:bg-cyan-900/20 rounded-lg p-3 border border-cyan-100 dark:border-cyan-800/50 flex items-start gap-3">
+      <i class="fas fa-info-circle text-cyan-600 dark:text-cyan-400 mt-0.5 flex-shrink-0"></i>
+      <p class="text-sm text-cyan-800 dark:text-cyan-200"><span class="font-semibold">Tip:</span> Right-click any sprite to open the context menu for quick actions: add, replace, or remove sprites.</p>
     </div>
-        <div class="flex items-center">
-          <input id="allow-cell-swap" type="checkbox" v-model="allowCellSwap" class="mr-2 w-4 h-4" />
-          <label for="allow-cell-swap" class="dark:text-gray-200 text-sm sm:text-base">Allow moving between cells</label>
+
+    <section class="w-full bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 p-1 shadow-sm">
+      <div class="flex flex-wrap items-center gap-1">
+        <!-- Toggles Group -->
+        <div class="flex items-center gap-1 p-1">
+          <label class="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-700 cursor-pointer transition-colors" title="Pixel Perfect">
+            <input id="pixel-perfect" type="checkbox" v-model="settingsStore.pixelPerfect" class="w-4 h-4 rounded text-blue-600 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600" />
+            <span class="text-sm font-medium text-gray-700 dark:text-gray-200">Pixel Perfect</span>
+          </label>
+          <label class="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-700 cursor-pointer transition-colors" title="Cell Swapping">
+            <input id="allow-cell-swap" type="checkbox" v-model="allowCellSwap" class="w-4 h-4 rounded text-blue-600 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600" />
+            <span class="text-sm font-medium text-gray-700 dark:text-gray-200">Swap</span>
+          </label>
+          <label class="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-700 cursor-pointer transition-colors" title="Compare Sprites">
+            <input id="show-all-sprites" type="checkbox" v-model="showAllSprites" class="w-4 h-4 rounded text-blue-600 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600" />
+            <span class="text-sm font-medium text-gray-700 dark:text-gray-200">Compare</span>
+          </label>
         </div>
-        <!-- Add new checkbox for showing all sprites -->
-        <div class="flex items-center">
-          <input id="show-all-sprites" type="checkbox" v-model="showAllSprites" class="mr-2" />
-          <label for="show-all-sprites" class="dark:text-gray-200">Compare sprites</label>
+
+        <div class="w-px h-6 bg-gray-200 dark:bg-gray-700 mx-1"></div>
+
+        <!-- Spacing & Grid Group -->
+        <div class="flex items-center gap-1 p-1">
+          <label class="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-700 cursor-pointer transition-colors" title="Negative Spacing">
+            <input id="negative-spacing" type="checkbox" v-model="settingsStore.negativeSpacingEnabled" class="w-4 h-4 rounded text-blue-600 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600" />
+            <span class="text-sm font-medium text-gray-700 dark:text-gray-200">Spacing</span>
+          </label>
+          <label class="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-700 cursor-pointer transition-colors" title="Checkerboard Background">
+            <input id="checkerboard" type="checkbox" v-model="settingsStore.checkerboardEnabled" class="w-4 h-4 rounded text-blue-600 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600" />
+            <span class="text-sm font-medium text-gray-700 dark:text-gray-200">Grid</span>
+          </label>
         </div>
-        <!-- Negative spacing control -->
-        <div class="flex items-center">
-          <input id="negative-spacing" type="checkbox" v-model="settingsStore.negativeSpacingEnabled" class="mr-2 w-4 h-4" />
-          <label for="negative-spacing" class="dark:text-gray-200 text-sm sm:text-base">Negative spacing</label>
-        </div>
-        <!-- Background color picker -->
+
+        <div class="w-px h-6 bg-gray-200 dark:bg-gray-700 mx-1"></div>
+
+        <!-- Background Color -->
+        <div class="flex items-center gap-2 px-3 py-2">
+          <label for="bg-color" class="text-sm font-medium text-gray-600 dark:text-gray-400">Bg:</label>
           <div class="flex items-center gap-2">
-          <label for="bg-color" class="dark:text-gray-200 text-sm sm:text-base">Background:</label>
-          <select id="bg-color" v-model="bgSelectValue" class="px-2 py-1 border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 dark:text-gray-200 text-sm">
+            <select
+              id="bg-color"
+              v-model="bgSelectValue"
+              class="px-2 py-1 border border-gray-300 dark:border-gray-600 rounded-md bg-white dark:bg-gray-700 dark:text-gray-200 text-sm focus:ring-2 focus:ring-blue-500 outline-none transition-all cursor-pointer hover:border-gray-400 dark:hover:border-gray-500"
+            >
               <option value="transparent">Transparent</option>
               <option value="#ffffff">White</option>
               <option value="#000000">Black</option>
               <option value="#f9fafb">Light Gray</option>
-            <option value="custom">Custom...</option>
+              <option value="custom">Custom</option>
             </select>
-          <input v-if="bgSelectValue === 'custom'" type="color" v-model="customColor" @input="settingsStore.setBackgroundColor(customColor)" class="w-8 h-8 border border-gray-300 dark:border-gray-600 rounded cursor-pointer" />
+            <div v-if="bgSelectValue === 'custom'" class="relative w-6 h-6 rounded-full overflow-hidden border border-gray-300 dark:border-gray-600 shadow-sm">
+              <input type="color" v-model="customColor" @input="settingsStore.setBackgroundColor(customColor)" class="absolute -top-2 -left-2 w-10 h-10 cursor-pointer p-0 border-0" />
             </div>
           </div>
         </div>
 
-    <div class="relative border border-gray-300 dark:border-gray-600 rounded-lg overflow-auto">
-      <!-- Zoom controls - visible on all screen sizes and positioned outside cells -->
-      <div class="relative flex space-x-2 bg-white/90 dark:bg-gray-800/90 p-2 rounded-lg shadow-md z-20">
-        <button @click="zoomIn" class="p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors">
-          <i class="fas fa-plus"></i>
+        <div class="flex-1"></div>
+
+        <!-- Zoom Controls -->
+        <div class="flex items-center bg-gray-100 dark:bg-gray-700 rounded-lg p-1 mr-1">
+          <button @click="zoomOut" class="p-1.5 hover:bg-white dark:hover:bg-gray-600 text-gray-600 dark:text-gray-300 rounded-md transition-all" title="Zoom Out">
+            <i class="fas fa-minus text-xs"></i>
           </button>
-        <button @click="zoomOut" class="p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors">
-          <i class="fas fa-minus"></i>
+          <span class="px-2 text-xs font-mono text-gray-600 dark:text-gray-300 min-w-[3ch] text-center">{{ Math.round(zoom * 100) }}%</span>
+          <button @click="zoomIn" class="p-1.5 hover:bg-white dark:hover:bg-gray-600 text-gray-600 dark:text-gray-300 rounded-md transition-all" title="Zoom In">
+            <i class="fas fa-plus text-xs"></i>
           </button>
-        <button @click="resetZoom" class="p-2 bg-gray-100 hover:bg-gray-200 dark:bg-gray-700 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-100 rounded-lg transition-colors">
-          <i class="fas fa-expand"></i>
+          <div class="w-px h-4 bg-gray-300 dark:bg-gray-600 mx-1"></div>
+          <button @click="resetZoom" class="p-1.5 hover:bg-white dark:hover:bg-gray-600 text-gray-600 dark:text-gray-300 rounded-md transition-all" title="Reset Zoom">
+            <i class="fas fa-expand text-xs"></i>
           </button>
         </div>
 
-      <div class="canvas-container touch-manipulation relative" :style="{ transform: `scale(${zoom})`, transformOrigin: 'top left' }">
-        <canvas
-          ref="canvasRef"
+        <!-- Offset Labels Toggle -->
+        <label class="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-gray-50 dark:hover:bg-gray-700 cursor-pointer transition-colors border-l border-gray-100 dark:border-gray-700" title="Show Offset Labels">
+          <input id="show-offset-labels" type="checkbox" v-model="showOffsetLabels" class="w-4 h-4 rounded text-blue-600 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600" />
+          <span class="text-sm font-medium text-gray-700 dark:text-gray-200">Labels</span>
+        </label>
+      </div>
+    </section>
+
+    <div class="relative bg-white dark:bg-gray-800 border-2 border-gray-200 dark:border-gray-700 rounded-2xl shadow-lg overflow-auto max-h-[calc(100vh-400px)] min-h-[500px] w-full">
+      <div class="canvas-container touch-manipulation relative inline-block min-w-full">
+        <div
+          ref="gridContainerRef"
+          :style="{
+            transform: `scale(${zoom})`,
+            transformOrigin: 'top left',
+            width: `${gridDimensions.width}px`,
+            height: `${gridDimensions.height}px`,
+            position: 'relative',
+          }"
+          class="inline-block"
           @mousedown="startDrag"
           @mousemove="drag"
           @mouseup="stopDrag"
@@ -67,21 +127,102 @@
           @dragenter="handleDragEnter"
           @dragleave="onDragLeave"
           @drop="handleDrop"
-          class="w-full transition-all"
           :class="{ 'ring-4 ring-blue-500 ring-opacity-50': isDragOver }"
-          :style="settingsStore.pixelPerfect ? { 'image-rendering': 'pixelated' } : {}"
-        ></canvas>
-
-        <!-- Offset labels in corners -->
-        <div v-if="canvasRef" class="absolute inset-0 pointer-events-none">
+        >
+          <!-- Grid cells -->
           <div
-            v-for="position in spritePositions"
-            :key="position.id"
-            class="absolute text-[23px] leading-none font-mono text-cyan-600 dark:text-cyan-400 bg-white/90 dark:bg-gray-900/90 px-1 py-0.5 rounded-sm"
+            v-for="cellIndex in totalCells"
+            :key="`cell-${cellIndex - 1}`"
+            class="absolute"
             :style="{
-              // Use the global cell size so labels line up with the actual grid cells
-              left: `calc(${(position.cellX / canvasWidth) * 100}% + ${(gridMetrics.maxWidth / canvasWidth) * 100}% - 2px)`,
-              top: `calc(${(position.cellY / canvasHeight) * 100}% + ${(gridMetrics.maxHeight / canvasHeight) * 100}% - 2px)`,
+              left: `${getCellPosition(cellIndex - 1).x}px`,
+              top: `${getCellPosition(cellIndex - 1).y}px`,
+              width: `${gridMetrics.maxWidth}px`,
+              height: `${gridMetrics.maxHeight}px`,
+              backgroundColor: getCellBackground(),
+              backgroundImage: getCellBackgroundImage(),
+              backgroundSize: getCellBackgroundSize(),
+              backgroundPosition: getCellBackgroundPosition(),
+              border: `1px solid ${settingsStore.darkMode ? '#4b5563' : '#e5e7eb'}`,
+            }"
+            :class="{
+              'bg-blue-500 bg-opacity-20': highlightCell && highlightCell.col === (cellIndex - 1) % columns && highlightCell.row === Math.floor((cellIndex - 1) / columns),
+            }"
+          ></div>
+
+          <!-- Background sprites (for compare mode) -->
+          <template v-if="showAllSprites">
+            <template v-for="layer in visibleLayers" :key="`bg-layer-${layer.id}`">
+              <template v-for="(sprite, spriteIndex) in layer.sprites" :key="`bg-${sprite.id}`">
+                <template v-for="cellIndex in totalCells" :key="`bg-${sprite.id}-${cellIndex}`">
+                  <img
+                    v-if="spriteIndex !== cellIndex - 1 && !(activeSpriteId === sprite.id && ghostSprite)"
+                    :src="sprite.url"
+                    class="absolute pointer-events-none"
+                    :style="{
+                      left: `${getCellPosition(cellIndex - 1).x + gridMetrics.negativeSpacing + sprite.x}px`,
+                      top: `${getCellPosition(cellIndex - 1).y + gridMetrics.negativeSpacing + sprite.y}px`,
+                      width: `${sprite.width}px`,
+                      height: `${sprite.height}px`,
+                      opacity: '0.25',
+                      imageRendering: settingsStore.pixelPerfect ? 'pixelated' : 'auto',
+                    }"
+                    draggable="false"
+                  />
+                </template>
+              </template>
+            </template>
+          </template>
+
+          <!-- Layer sprites -->
+          <template v-for="layer in layers" :key="layer.id">
+            <template v-if="layer.visible">
+              <template v-for="(sprite, index) in layer.sprites" :key="sprite.id">
+                <img
+                  v-if="!(activeSpriteId === sprite.id && ghostSprite)"
+                  :src="sprite.url"
+                  class="absolute cursor-move"
+                  :style="{
+                    left: `${getCellPosition(index).x + gridMetrics.negativeSpacing + sprite.x}px`,
+                    top: `${getCellPosition(index).y + gridMetrics.negativeSpacing + sprite.y}px`,
+                    width: `${sprite.width}px`,
+                    height: `${sprite.height}px`,
+                    opacity: layer.id === activeLayerId ? '1' : '0.85',
+                    imageRendering: settingsStore.pixelPerfect ? 'pixelated' : 'auto',
+                  }"
+                  :data-sprite-id="sprite.id"
+                  :data-layer-id="layer.id"
+                  draggable="false"
+                />
+              </template>
+            </template>
+          </template>
+
+          <!-- Ghost sprite (while dragging) -->
+          <img
+            v-if="ghostSprite && activeSpriteId"
+            :src="activeSpriteSprite?.url"
+            class="absolute pointer-events-none"
+            :style="{
+              left: `${ghostSprite.x}px`,
+              top: `${ghostSprite.y}px`,
+              width: `${activeSpriteSprite?.width}px`,
+              height: `${activeSpriteSprite?.height}px`,
+              opacity: '0.6',
+              imageRendering: settingsStore.pixelPerfect ? 'pixelated' : 'auto',
+            }"
+            draggable="false"
+          />
+
+          <!-- Offset labels -->
+          <div
+            v-if="showOffsetLabels"
+            v-for="position in spritePositions"
+            :key="`label-${position.id}`"
+            class="absolute text-[23px] leading-none font-mono text-cyan-600 dark:text-cyan-400 bg-white/90 dark:bg-gray-900/90 px-1 py-0.5 rounded-sm pointer-events-none"
+            :style="{
+              left: `${position.cellX + position.maxWidth - 2}px`,
+              top: `${position.cellY + position.maxHeight - 2}px`,
               transform: 'translate(-100%, -100%)',
             }"
           >
@@ -91,23 +232,6 @@
       </div>
     </div>
 
-    <!-- Context Menu -->
-    <div v-if="showContextMenu" class="fixed bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-600 rounded-lg shadow-lg z-50 py-1" :style="{ left: contextMenuX + 'px', top: contextMenuY + 'px' }">
-      <button @click="addSprite" class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-gray-700 text-gray-700 dark:text-gray-200 flex items-center gap-2">
-        <i class="fas fa-plus"></i>
-        Add sprite
-      </button>
-      <button v-if="contextMenuSpriteId" @click="replaceSprite" class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-gray-700 text-gray-700 dark:text-gray-200 flex items-center gap-2">
-        <i class="fas fa-exchange-alt"></i>
-        Replace sprite
-      </button>
-      <button v-if="contextMenuSpriteId" @click="removeSprite" class="w-full px-4 py-2 text-left hover:bg-gray-100 dark:hover:bg-gray-700 text-red-600 dark:text-red-400 flex items-center gap-2">
-        <i class="fas fa-trash"></i>
-        Remove sprite
-      </button>
-    </div>
-
-    <!-- Hidden file input for replace functionality -->
     <input ref="fileInput" type="file" accept="image/*" class="hidden" @change="handleFileChange" />
   </div>
 </template>
@@ -116,7 +240,6 @@
   import { ref, onMounted, watch, onUnmounted, toRef, computed, nextTick } from 'vue';
   import { useSettingsStore } from '@/stores/useSettingsStore';
   import type { Sprite } from '@/types/sprites';
-  import { useCanvas2D } from '@/composables/useCanvas2D';
   import { useZoom } from '@/composables/useZoom';
   import { useDragSprite } from '@/composables/useDragSprite';
   import { useFileDrop } from '@/composables/useFileDrop';
@@ -141,21 +264,7 @@
   // Get settings from store
   const settingsStore = useSettingsStore();
 
-  const canvasRef = ref<HTMLCanvasElement | null>(null);
-
-  // rAF-based draw scheduler to coalesce multiple draw requests into a single frame
-  // Define before usage to avoid TDZ issues when passing into composables during setup
-  let rafId: number | null = null;
-  function requestDraw() {
-    if (rafId !== null) return;
-    rafId = requestAnimationFrame(() => {
-      rafId = null;
-      drawCanvas();
-    });
-  }
-
-  // Initialize composables
-  const canvas2D = useCanvas2D(canvasRef);
+  const gridContainerRef = ref<HTMLDivElement | null>(null);
 
   const {
     zoom,
@@ -171,6 +280,18 @@
 
   const allowCellSwap = ref(false);
 
+  const getMousePosition = (event: MouseEvent, z?: number) => {
+    if (!gridContainerRef.value) return null;
+    const currentZoom = z ?? zoom.value;
+    const rect = gridContainerRef.value.getBoundingClientRect();
+    const scaleX = gridContainerRef.value.offsetWidth / (rect.width / currentZoom);
+    const scaleY = gridContainerRef.value.offsetHeight / (rect.height / currentZoom);
+    return {
+      x: ((event.clientX - rect.left) / currentZoom) * scaleX,
+      y: ((event.clientY - rect.top) / currentZoom) * scaleY,
+    };
+  };
+
   const {
     isDragging,
     activeSpriteId,
@@ -186,6 +307,7 @@
     calculateMaxDimensions,
   } = useDragSprite({
     sprites: computed(() => props.layers.find(l => l.id === props.activeLayerId)?.sprites ?? []),
+    layers: toRef(props, 'layers'),
     columns: toRef(props, 'columns'),
     zoom,
     allowCellSwap,
@@ -193,13 +315,15 @@
     manualCellSizeEnabled: toRef(settingsStore, 'manualCellSizeEnabled'),
     manualCellWidth: toRef(settingsStore, 'manualCellWidth'),
     manualCellHeight: toRef(settingsStore, 'manualCellHeight'),
-    getMousePosition: (event, z) => canvas2D.getMousePosition(event, z),
+    getMousePosition,
     onUpdateSprite: (id, x, y) => emit('updateSprite', id, x, y),
     onUpdateSpriteCell: (id, newIndex) => emit('updateSpriteCell', id, newIndex),
-    onDraw: requestDraw,
+    onDraw: () => {},
   });
 
   const activeSprites = computed(() => props.layers.find(l => l.id === props.activeLayerId)?.sprites ?? []);
+  const visibleLayers = computed(() => props.layers.filter(l => l.visible));
+  const activeSpriteSprite = computed(() => activeSprites.value.find(s => s.id === activeSpriteId.value));
 
   const { isDragOver, handleDragOver, handleDragEnter, handleDragLeave, handleDrop } = useFileDrop({
     sprites: activeSprites,
@@ -208,6 +332,7 @@
   });
 
   const showAllSprites = ref(false);
+  const showOffsetLabels = ref(false);
   const showContextMenu = ref(false);
   const contextMenuX = ref(0);
   const contextMenuY = ref(0);
@@ -216,24 +341,79 @@
   const fileInput = ref<HTMLInputElement | null>(null);
   const customColor = ref('#ffffff');
 
-  // Background select handling: keep the select stable on "custom"
+  // Grid metrics
+  const gridMetrics = computed(() => calculateMaxDimensions());
+
+  const totalCells = computed(() => {
+    const maxLen = Math.max(1, ...props.layers.map(l => (l.visible ? l.sprites.length : 1)));
+    return Math.max(1, Math.ceil(maxLen / props.columns)) * props.columns;
+  });
+
+  const gridDimensions = computed(() => {
+    const maxLen = Math.max(1, ...props.layers.map(l => (l.visible ? l.sprites.length : 1)));
+    const rows = Math.max(1, Math.ceil(maxLen / props.columns));
+    return {
+      width: gridMetrics.value.maxWidth * props.columns,
+      height: gridMetrics.value.maxHeight * rows,
+    };
+  });
+
+  const getCellPosition = (index: number) => {
+    const col = index % props.columns;
+    const row = Math.floor(index / props.columns);
+    return {
+      x: col * gridMetrics.value.maxWidth,
+      y: row * gridMetrics.value.maxHeight,
+    };
+  };
+
+  const getCellBackground = () => {
+    const bg = settingsStore.backgroundColor;
+    if (bg === 'transparent') {
+      return 'transparent';
+    }
+    return bg;
+  };
+
+  const getCellBackgroundImage = () => {
+    const bg = settingsStore.backgroundColor;
+    if (bg === 'transparent' && settingsStore.checkerboardEnabled) {
+      // Checkerboard pattern for transparent backgrounds (dark mode friendly)
+      const color = settingsStore.darkMode ? '#4b5563' : '#d1d5db';
+      return `linear-gradient(45deg, ${color} 25%, transparent 25%), linear-gradient(-45deg, ${color} 25%, transparent 25%), linear-gradient(45deg, transparent 75%, ${color} 75%), linear-gradient(-45deg, transparent 75%, ${color} 75%)`;
+    }
+    return 'none';
+  };
+
+  const getCellBackgroundSize = () => {
+    const bg = settingsStore.backgroundColor;
+    if (bg === 'transparent') {
+      return '20px 20px';
+    }
+    return 'auto';
+  };
+
+  const getCellBackgroundPosition = () => {
+    const bg = settingsStore.backgroundColor;
+    if (bg === 'transparent') {
+      return '0 0, 0 10px, 10px -10px, -10px 0px';
+    }
+    return '0 0';
+  };
+
+  // Background select handling
   const presetBgColors = ['transparent', '#ffffff', '#000000', '#f9fafb'] as const;
   const isHexColor = (val: string) => /^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(val);
 
-  // Ensure customColor mirrors the current stored custom color (only when needed)
   if (isHexColor(settingsStore.backgroundColor) && !presetBgColors.includes(settingsStore.backgroundColor as any)) {
     customColor.value = settingsStore.backgroundColor;
   }
 
-  // Track if user is in custom mode to keep picker visible
-  // Initialize to true if current color is custom
   const isCustomMode = ref(isHexColor(settingsStore.backgroundColor) && !presetBgColors.includes(settingsStore.backgroundColor as any));
 
   const bgSelectValue = computed<string>({
     get() {
-      // If user explicitly entered custom mode, stay in it regardless of color value
       if (isCustomMode.value) {
-        // Keep color picker synced
         const val = settingsStore.backgroundColor;
         if (isHexColor(val)) {
           customColor.value = val;
@@ -244,18 +424,15 @@
       const val = settingsStore.backgroundColor;
       if (presetBgColors.includes(val as any)) return val;
       if (isHexColor(val)) {
-        // Keep the color picker open and sync its swatch
         customColor.value = val;
-        isCustomMode.value = true; // Auto-enable custom mode for non-preset hex colors
+        isCustomMode.value = true;
         return 'custom';
       }
-      // Fallback
       return 'transparent';
     },
     set(v: string) {
       if (v === 'custom') {
         isCustomMode.value = true;
-        // Switch UI to custom mode but keep the stored value as a color
         const fallback = '#ffffff';
         const current = settingsStore.backgroundColor;
         const fromStore = isHexColor(current) ? current : null;
@@ -270,24 +447,13 @@
     },
   });
 
-  // Ensure canvas redraw and UI flush after background changes
-  watch(
-    () => settingsStore.backgroundColor,
-    async () => {
-      await nextTick();
-      requestDraw();
-    }
-  );
-
-  // Grid metrics used to position offset labels relative to cell size
-  const gridMetrics = computed(() => calculateMaxDimensions());
-
-  // Reactive canvas dimensions to ensure label positions update when canvas size changes
-  const canvasWidth = ref(0);
-  const canvasHeight = ref(0);
-
   const startDrag = (event: MouseEvent) => {
-    if (!canvasRef.value) return;
+    // If the click originated from an interactive element (button, link, input), ignore drag handling
+    const target = event.target as HTMLElement;
+    if (target && target.closest('button, a, input, select, textarea')) {
+      return;
+    }
+    if (!gridContainerRef.value) return;
 
     // Hide context menu if open
     showContextMenu.value = false;
@@ -295,27 +461,42 @@
     // Handle right-click for context menu
     if ('button' in event && (event as MouseEvent).button === 2) {
       event.preventDefault();
-      const pos = canvas2D.getMousePosition(event, zoom.value);
+      const pos = getMousePosition(event, zoom.value);
       if (!pos) return;
 
       const clickedSprite = findSpriteAtPosition(pos.x, pos.y);
       contextMenuSpriteId.value = clickedSprite?.id || null;
+
       contextMenuX.value = event.clientX;
       contextMenuY.value = event.clientY;
+
       showContextMenu.value = true;
       return;
     }
 
-    // Ignore non-left mouse buttons (but allow touch-generated events without a button prop)
+    // Ignore non-left mouse buttons
     if ('button' in event && (event as MouseEvent).button !== 0) return;
 
     // Delegate to composable for actual drag handling
     dragStart(event);
   };
 
-  // Wrapper for drag move
+  const pendingDrag = ref(false);
+  const latestEvent = ref<MouseEvent | null>(null);
+
   const drag = (event: MouseEvent) => {
-    dragMove(event);
+    // Store the latest event and schedule a single animation frame update
+    latestEvent.value = event;
+    if (!pendingDrag.value) {
+      pendingDrag.value = true;
+      requestAnimationFrame(() => {
+        if (latestEvent.value) {
+          dragMove(latestEvent.value);
+        }
+        pendingDrag.value = false;
+        latestEvent.value = null;
+      });
+    }
   };
 
   const removeSprite = () => {
@@ -328,10 +509,8 @@
 
   const replaceSprite = () => {
     if (contextMenuSpriteId.value && fileInput.value) {
-      // Store the sprite ID separately so it persists after context menu closes
       replacingSpriteId.value = contextMenuSpriteId.value;
       fileInput.value.click();
-      // Hide context menu immediately since we've stored the ID
       showContextMenu.value = false;
       contextMenuSpriteId.value = null;
     }
@@ -340,7 +519,6 @@
   const addSprite = () => {
     if (fileInput.value) {
       fileInput.value.click();
-      // Hide context menu immediately
       showContextMenu.value = false;
       contextMenuSpriteId.value = null;
     }
@@ -355,14 +533,12 @@
         if (replacingSpriteId.value) {
           emit('replaceSprite', replacingSpriteId.value, file);
         } else {
-          // Adding new sprite
           emit('addSprite', file);
         }
       } else {
         alert('Please select an image file.');
       }
     }
-    // Clean up after file selection
     replacingSpriteId.value = null;
     input.value = '';
   };
@@ -372,154 +548,25 @@
     contextMenuSpriteId.value = null;
   };
 
-  // Wrapper for drag leave to pass canvasRef
   const onDragLeave = (event: DragEvent) => {
-    handleDragLeave(event, canvasRef.value);
-  };
-
-  function drawCanvas() {
-    if (!canvasRef.value || !canvas2D.ctx.value) return;
-
-    const { maxWidth, maxHeight, negativeSpacing } = calculateMaxDimensions();
-
-    // Set canvas size
-    const maxLen = Math.max(1, ...props.layers.map(l => (l.visible ? l.sprites.length : 1)));
-    const rows = Math.max(1, Math.ceil(maxLen / props.columns));
-    const newCanvasWidth = maxWidth * props.columns;
-    const newCanvasHeight = maxHeight * rows;
-    canvas2D.setCanvasSize(newCanvasWidth, newCanvasHeight);
-    // Update reactive dimensions for template-driven elements (like labels)
-    if (canvasWidth.value !== newCanvasWidth) canvasWidth.value = newCanvasWidth;
-    if (canvasHeight.value !== newCanvasHeight) canvasHeight.value = newCanvasHeight;
-
-    // Clear canvas
-    canvas2D.clear();
-
-    // Apply pixel art optimization
-    canvas2D.applySmoothing();
-
-    // Draw background for each cell
-    for (let col = 0; col < props.columns; col++) {
-      for (let row = 0; row < rows; row++) {
-        const cellX = Math.floor(col * maxWidth);
-        const cellY = Math.floor(row * maxHeight);
-
-        // Draw cell background
-        canvas2D.fillCellBackground(cellX, cellY, maxWidth, maxHeight);
-
-        // Highlight the target cell if specified
-        if (highlightCell.value && highlightCell.value.col === col && highlightCell.value.row === row) {
-          canvas2D.fillRect(cellX, cellY, maxWidth, maxHeight, 'rgba(59, 130, 246, 0.2)');
-        }
-      }
-    }
-
-    // If showing all sprites, draw all sprites with transparency in each cell
-    if (showAllSprites.value) {
-      const total = Math.max(...props.layers.map(l => (l.visible ? l.sprites.length : 0)));
-      for (let cellIndex = 0; cellIndex < total; cellIndex++) {
-        const cellCol = cellIndex % props.columns;
-        const cellRow = Math.floor(cellIndex / props.columns);
-        const cellX = Math.floor(cellCol * maxWidth);
-        const cellY = Math.floor(cellRow * maxHeight);
-
-        props.layers.forEach(layer => {
-          if (!layer.visible) return;
-          const sprite = layer.sprites[cellIndex];
-          if (sprite) canvas2D.drawImage(sprite.img, cellX + negativeSpacing + sprite.x, cellY + negativeSpacing + sprite.y, 0.35);
-        });
-      }
-    }
-
-    // Draw layers in order; active layer will be interactable
-    props.layers.forEach(layer => {
-      if (!layer.visible) return;
-      layer.sprites.forEach((sprite, index) => {
-        // Skip the active sprite if we're showing a ghost instead
-        if (activeSpriteId.value === sprite.id && ghostSprite.value) return;
-
-        const col = index % props.columns;
-        const row = Math.floor(index / props.columns);
-
-        const cellX = Math.floor(col * maxWidth);
-        const cellY = Math.floor(row * maxHeight);
-
-        const alpha = layer.id === props.activeLayerId ? 1 : 0.85;
-        canvas2D.drawImage(sprite.img, cellX + negativeSpacing + sprite.x, cellY + negativeSpacing + sprite.y, alpha);
-      });
-    });
-
-    // Draw ghost sprite if we're dragging between cells
-    if (ghostSprite.value && activeSpriteId.value) {
-      const sprite = activeSprites.value.find(s => s.id === activeSpriteId.value);
-      if (sprite) {
-        canvas2D.drawImage(sprite.img, ghostSprite.value.x, ghostSprite.value.y, 0.6);
-      }
-    }
-
-    // Draw grid lines on top of everything
-    for (let col = 0; col < props.columns; col++) {
-      for (let row = 0; row < rows; row++) {
-        const cellX = Math.floor(col * maxWidth);
-        const cellY = Math.floor(row * maxHeight);
-        canvas2D.strokeGridCell(cellX, cellY, maxWidth, maxHeight);
-      }
-    }
-  }
-
-  // Track which images already have listeners
-  const imagesWithListeners = new WeakSet<HTMLImageElement>();
-
-  const attachImageListeners = () => {
-    const sprites = props.layers.flatMap(l => l.sprites);
-    canvas2D.attachImageListeners(sprites, handleForceRedraw, imagesWithListeners);
+    handleDragLeave(event, gridContainerRef.value);
   };
 
   onMounted(() => {
-    canvas2D.initContext();
-    requestDraw();
-
-    // Attach listeners for current sprites
-    attachImageListeners();
-
-    // Listen for forceRedraw event from App.vue
-    window.addEventListener('forceRedraw', handleForceRedraw);
-
-    // Hide context menu when clicking elsewhere
-    document.addEventListener('click', hideContextMenu);
+    document.addEventListener('mouseup', stopDrag);
   });
 
   onUnmounted(() => {
-    window.removeEventListener('forceRedraw', handleForceRedraw);
-    document.removeEventListener('click', hideContextMenu);
+    document.removeEventListener('mouseup', stopDrag);
   });
 
-  // Handler for force redraw event
-  const handleForceRedraw = () => {
-    // Ensure integer positioning for crisp rendering on the active layer
-    canvas2D.ensureIntegerPositions(activeSprites.value);
-    canvas2D.applySmoothing();
-    requestDraw();
-  };
-
-  // Re-attach listeners and redraw whenever layers/sprites change
+  // Watch for background color changes
   watch(
-    () => props.layers,
-    () => {
-      attachImageListeners();
-      requestDraw();
-    },
-    { deep: true }
+    () => settingsStore.backgroundColor,
+    async () => {
+      await nextTick();
+    }
   );
-  watch(() => props.columns, requestDraw);
-  watch(() => settingsStore.pixelPerfect, requestDraw);
-  watch(() => settingsStore.darkMode, requestDraw);
-  watch(() => settingsStore.negativeSpacingEnabled, requestDraw);
-  watch(() => settingsStore.backgroundColor, requestDraw);
-  watch(() => settingsStore.manualCellSizeEnabled, requestDraw);
-  watch(() => settingsStore.manualCellWidth, requestDraw);
-  watch(() => settingsStore.manualCellHeight, requestDraw);
-  watch(showAllSprites, requestDraw);
 </script>
 
 <style scoped></style>

src/components/SpritePreview.vue

@@ -1,24 +1,74 @@
 <template>
-  <div class="spritesheet-preview w-full">
-    <!-- Main Layout: Canvas Left, Controls Right -->
-    <div class="flex flex-col lg:flex-row gap-4">
-      <!-- Canvas Area (Left/Main) -->
-      <div class="flex-1 min-w-0">
-        <div class="relative bg-gray-50 dark:bg-gray-800 border border-gray-300 dark:border-gray-700 rounded-lg overflow-auto min-h-[300px] sm:min-h-[520px] shadow-sm hover:shadow-md transition-shadow duration-200">
-          <canvas
-            ref="previewCanvasRef"
-            @mousedown="startDrag"
+  <div class="spritesheet-preview w-full h-full">
+    <div class="flex flex-col lg:flex-row gap-4 h-full">
+      <div class="flex-1 min-w-0 flex flex-col">
+        <div
+          class="relative bg-gray-50 dark:bg-gray-800 border border-gray-300 dark:border-gray-700 rounded-lg overflow-auto flex-1 min-h-[300px] max-h-[calc(100vh-12rem)] shadow-sm hover:shadow-md transition-shadow duration-200"
           @mousemove="drag"
           @mouseup="stopDrag"
           @mouseleave="stopDrag"
-            @touchstart="handleTouchStart"
           @touchmove="handleTouchMove"
           @touchend="stopDrag"
-            class="block touch-manipulation"
-            :class="{ 'cursor-move': isDraggable }"
-            :style="{ transform: `scale(${zoom})`, transformOrigin: 'top left', ...(settingsStore.pixelPerfect ? { 'image-rendering': 'pixelated' } : {}) }"
         >
-          </canvas>
+          <div
+            ref="previewContainerRef"
+            class="relative touch-manipulation inline-block"
+            :style="{
+              transform: `scale(${zoom})`,
+              transformOrigin: 'top left',
+              width: `${cellDimensions.cellWidth}px`,
+              height: `${cellDimensions.cellHeight}px`,
+              backgroundColor: '#f9fafb',
+              backgroundImage: getPreviewBackgroundImage(),
+              backgroundSize: settingsStore.backgroundColor === 'transparent' ? '20px 20px' : 'auto',
+              backgroundPosition: settingsStore.backgroundColor === 'transparent' ? '0 0, 0 10px, 10px -10px, -10px 0px' : '0 0',
+              border: `1px solid ${settingsStore.darkMode ? '#4b5563' : '#e5e7eb'}`,
+            }"
+          >
+            <!-- Background sprites (dimmed for comparison) -->
+            <template v-if="showAllSprites">
+              <template v-for="i in maxFrames()" :key="`bg-${i - 1}`">
+                <template v-if="i - 1 !== currentFrameIndex && !hiddenFrames.includes(i - 1)">
+                  <template v-for="layer in getVisibleLayers()" :key="`${layer.id}-${i - 1}`">
+                    <img
+                      v-if="layer.sprites[i - 1]"
+                      :src="layer.sprites[i - 1].url"
+                      class="absolute pointer-events-none"
+                      :style="{
+                        left: `${cellDimensions.negativeSpacing + layer.sprites[i - 1].x}px`,
+                        top: `${cellDimensions.negativeSpacing + layer.sprites[i - 1].y}px`,
+                        width: `${layer.sprites[i - 1].width}px`,
+                        height: `${layer.sprites[i - 1].height}px`,
+                        opacity: '0.3',
+                        imageRendering: settingsStore.pixelPerfect ? 'pixelated' : 'auto',
+                      }"
+                      draggable="false"
+                    />
+                  </template>
+                </template>
+              </template>
+            </template>
+
+            <!-- Current frame sprites -->
+            <template v-for="layer in getVisibleLayers()" :key="layer.id">
+              <img
+                v-if="layer.sprites[currentFrameIndex]"
+                :src="layer.sprites[currentFrameIndex].url"
+                class="absolute"
+                :class="{ 'cursor-move': isDraggable }"
+                :style="{
+                  left: `${cellDimensions.negativeSpacing + layer.sprites[currentFrameIndex].x}px`,
+                  top: `${cellDimensions.negativeSpacing + layer.sprites[currentFrameIndex].y}px`,
+                  width: `${layer.sprites[currentFrameIndex].width}px`,
+                  height: `${layer.sprites[currentFrameIndex].height}px`,
+                  imageRendering: settingsStore.pixelPerfect ? 'pixelated' : 'auto',
+                }"
+                @mousedown="startDrag($event, layer.sprites[currentFrameIndex], layer.id)"
+                @touchstart="handleTouchStart($event, layer.sprites[currentFrameIndex], layer.id)"
+                draggable="false"
+              />
+            </template>
+          </div>
 
           <!-- Mobile zoom controls -->
           <div class="absolute bottom-3 right-3 flex space-x-2 lg:hidden bg-white/80 dark:bg-gray-800/80 p-2 rounded-lg shadow-md">
@@ -32,119 +82,140 @@
         </div>
       </div>
 
-      <!-- Controls Sidebar (Right) -->
       <div class="lg:w-80 xl:w-96 flex-shrink-0">
-        <div class="bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 p-4 space-y-4">
+        <div class="bg-white dark:bg-gray-800 rounded-xl border border-gray-200 dark:border-gray-700 shadow-sm overflow-hidden">
           <!-- Playback Controls -->
-          <div class="space-y-3">
-            <h3 class="text-sm font-semibold text-gray-700 dark:text-gray-300 uppercase tracking-wide">Playback</h3>
+          <div class="p-4 border-b border-gray-100 dark:border-gray-700">
+            <h3 class="text-xs font-bold text-gray-400 dark:text-gray-500 uppercase tracking-wider mb-3">Playback</h3>
             <div class="flex items-center gap-2">
-              <button @click="togglePlayback" class="flex items-center justify-center gap-1.5 bg-blue-500 hover:bg-blue-600 text-white px-4 py-2 rounded-md transition-colors cursor-pointer flex-1">
-                <span v-if="isPlaying" class="flex items-center gap-1.5">
-                  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" class="w-5 h-5">
-                    <path fill-rule="evenodd" d="M6.75 5.25a.75.75 0 01.75-.75H9a.75.75 0 01.75.75v13.5a.75.75 0 01-.75.75H7.5a.75.75 0 01-.75-.75V5.25zm7.5 0A.75.75 0 0115 4.5h1.5a.75.75 0 01.75.75v13.5a.75.75 0 01-.75.75H15a.75.75 0 01-.75-.75V5.25z" clip-rule="evenodd" />
-                  </svg>
+              <button @click="togglePlayback" class="flex items-center justify-center gap-2 bg-blue-600 hover:bg-blue-700 text-white px-4 py-2.5 rounded-lg transition-all cursor-pointer flex-1 shadow-sm active:scale-95">
+                <span v-if="isPlaying" class="flex items-center gap-2 font-medium">
+                  <i class="fas fa-pause"></i>
                   Pause
                 </span>
-                <span v-else class="flex items-center gap-1.5">
-                  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" class="w-5 h-5">
-                    <path fill-rule="evenodd" d="M4.5 5.653c0-1.426 1.529-2.33 2.779-1.643l11.54 6.348c1.295.712 1.295 2.573 0 3.285L7.28 19.991c-1.25.687-2.779-.217-2.779-1.643V5.653z" clip-rule="evenodd" />
-                  </svg>
+                <span v-else class="flex items-center gap-2 font-medium">
+                  <i class="fas fa-play"></i>
                   Play
                 </span>
               </button>
-              <button @click="previousFrame" class="bg-gray-200 hover:bg-gray-300 dark:bg-gray-700 dark:hover:bg-gray-600 p-2 rounded-md transition-colors duration-200 cursor-pointer" :disabled="isPlaying" :class="{ 'opacity-50 cursor-not-allowed': isPlaying }">
-                <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" class="w-5 h-5 dark:text-gray-200">
-                  <path fill-rule="evenodd" d="M11.78 5.22a.75.75 0 01.75.75v12.06l4.72-4.72a.75.75 0 111.06 1.06l-6 6a.75.75 0 01-1.06 0l-6-6a.75.75 0 011.06-1.06l4.72 4.72V5.97a.75.75 0 01.75-.75z" clip-rule="evenodd" transform="rotate(90 12 12)" />
-                </svg>
+              <button @click="previousFrame" class="btn btn-secondary btn-icon rounded-lg" :disabled="isPlaying" :class="{ 'opacity-50 cursor-not-allowed': isPlaying }">
+                <i class="fas fa-step-backward"></i>
               </button>
-              <button @click="nextFrame" class="bg-gray-200 hover:bg-gray-300 dark:bg-gray-700 dark:hover:bg-gray-600 p-2 rounded-md transition-colors duration-200 cursor-pointer" :disabled="isPlaying" :class="{ 'opacity-50 cursor-not-allowed': isPlaying }">
-                <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" class="w-5 h-5 dark:text-gray-200">
-                  <path fill-rule="evenodd" d="M11.78 5.22a.75.75 0 01.75.75v12.06l4.72-4.72a.75.75 0 111.06 1.06l-6 6a.75.75 0 01-1.06 0l-6-6a.75.75 0 011.06-1.06l4.72 4.72V5.97a.75.75 0 01.75-.75z" clip-rule="evenodd" transform="rotate(-90 12 12)" />
-                </svg>
+              <button @click="nextFrame" class="btn btn-secondary btn-icon rounded-lg" :disabled="isPlaying" :class="{ 'opacity-50 cursor-not-allowed': isPlaying }">
+                <i class="fas fa-step-forward"></i>
               </button>
             </div>
           </div>
 
-          <!-- Sliders -->
-          <div class="space-y-3">
-            <h3 class="text-sm font-semibold text-gray-700 dark:text-gray-300 uppercase tracking-wide">Controls</h3>
+          <!-- Animation Settings -->
+          <div class="p-4 border-b border-gray-100 dark:border-gray-700 space-y-5">
+            <h3 class="text-xs font-bold text-gray-400 dark:text-gray-500 uppercase tracking-wider mb-1">Animation</h3>
 
             <!-- Frame Navigation -->
-            <div class="space-y-1">
+            <div class="space-y-2">
               <div class="flex justify-between items-center">
-                <span class="text-xs font-medium text-gray-600 dark:text-gray-400">Frame</span>
-                <span class="text-xs font-mono text-gray-700 dark:text-gray-300">{{ visibleFrameNumber }}/{{ visibleFramesCount }}</span>
+                <span class="text-sm font-medium text-gray-700 dark:text-gray-300">Frame</span>
+                <span class="text-xs font-mono text-gray-500 dark:text-gray-400 bg-gray-100 dark:bg-gray-700 px-2 py-0.5 rounded">{{ visibleFrameNumber }} / {{ visibleFramesCount }}</span>
               </div>
-              <input type="range" min="0" :max="visibleFrames.length - 1" :value="visibleFrameIndex" @input="handleSliderInput" class="w-full h-2 bg-gray-200 dark:bg-gray-700 rounded-lg appearance-none cursor-pointer accent-blue-500" :disabled="isPlaying" :class="{ 'opacity-50': isPlaying }" />
+              <input type="range" min="0" :max="visibleFrames.length - 1" :value="visibleFrameIndex" @input="handleSliderInput" class="w-full h-1.5 bg-gray-200 dark:bg-gray-700 rounded-lg appearance-none cursor-pointer accent-blue-600" :disabled="isPlaying" :class="{ 'opacity-50': isPlaying }" />
             </div>
 
             <!-- FPS Control -->
-            <div class="space-y-1">
+            <div class="space-y-2">
               <div class="flex justify-between items-center">
-                <span class="text-xs font-medium text-gray-600 dark:text-gray-400">FPS</span>
-                <span class="text-xs font-mono text-gray-700 dark:text-gray-300">{{ fps }}</span>
+                <span class="text-sm font-medium text-gray-700 dark:text-gray-300">Speed (FPS)</span>
+                <span class="text-xs font-mono text-gray-500 dark:text-gray-400 bg-gray-100 dark:bg-gray-700 px-2 py-0.5 rounded">{{ fps }}</span>
               </div>
-              <input type="range" min="1" max="60" v-model.number="fps" class="w-full h-2 bg-gray-200 dark:bg-gray-700 rounded-lg appearance-none cursor-pointer accent-blue-500" />
+              <input type="range" min="1" max="60" v-model.number="fps" class="w-full h-1.5 bg-gray-200 dark:bg-gray-700 rounded-lg appearance-none cursor-pointer accent-blue-600" />
             </div>
+          </div>
+
+          <!-- View Options -->
+          <div class="p-4 space-y-5">
+            <h3 class="text-xs font-bold text-gray-400 dark:text-gray-500 uppercase tracking-wider mb-1">View Options</h3>
 
             <!-- Zoom Control -->
-            <div class="space-y-1">
-              <div class="flex justify-between items-center">
-                <span class="text-xs font-medium text-gray-600 dark:text-gray-400">Zoom</span>
-                <span class="text-xs font-mono text-gray-700 dark:text-gray-300">{{ Math.round(zoom * 100) }}%</span>
-              </div>
-              <input type="range" min="0.5" max="5" step="0.1" v-model.number="zoom" class="w-full h-2 bg-gray-200 dark:bg-gray-700 rounded-lg appearance-none cursor-pointer accent-blue-500" />
-            </div>
-          </div>
-
-          <!-- Options -->
-          <div class="space-y-3">
-            <h3 class="text-sm font-semibold text-gray-700 dark:text-gray-300 uppercase tracking-wide">Options</h3>
             <div class="space-y-2">
-              <label class="flex items-center gap-2 cursor-pointer">
-                <input type="checkbox" v-model="isDraggable" class="w-4 h-4 text-blue-500 focus:ring-blue-400 rounded border-gray-300 dark:border-gray-600 dark:bg-gray-700" />
-                <span class="text-sm dark:text-gray-200">Reposition</span>
+              <div class="flex justify-between items-center">
+                <span class="text-sm font-medium text-gray-700 dark:text-gray-300">Zoom</span>
+                <span class="text-xs font-mono text-gray-500 dark:text-gray-400 bg-gray-100 dark:bg-gray-700 px-2 py-0.5 rounded">{{ Math.round(zoom * 100) }}%</span>
+              </div>
+              <input type="range" min="0.5" max="5" step="0.1" v-model.number="zoom" class="w-full h-1.5 bg-gray-200 dark:bg-gray-700 rounded-lg appearance-none cursor-pointer accent-blue-600" />
+            </div>
+
+            <!-- Toggles -->
+            <div class="space-y-3 pt-2">
+              <label class="flex items-center justify-between cursor-pointer group">
+                <span class="text-sm text-gray-700 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-gray-100 transition-colors">Pixel perfect</span>
+                <div class="relative inline-flex items-center cursor-pointer">
+                  <input type="checkbox" v-model="settingsStore.pixelPerfect" class="sr-only peer" />
+                  <div
+                    class="w-9 h-5 bg-gray-200 peer-focus:outline-none peer-focus:ring-2 peer-focus:ring-blue-300 dark:peer-focus:ring-blue-800 rounded-full peer dark:bg-gray-700 peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-4 after:w-4 after:transition-all dark:border-gray-600 peer-checked:bg-blue-600"
+                  ></div>
+                </div>
               </label>
 
-              <label class="flex items-center gap-2 cursor-pointer">
-                <input type="checkbox" v-model="showAllSprites" class="w-4 h-4 text-blue-500 focus:ring-blue-400 rounded border-gray-300 dark:border-gray-600 dark:bg-gray-700" />
-                <span class="text-sm dark:text-gray-200">Compare sprites</span>
+              <label class="flex items-center justify-between cursor-pointer group">
+                <span class="text-sm text-gray-700 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-gray-100 transition-colors">Reposition mode</span>
+                <div class="relative inline-flex items-center cursor-pointer">
+                  <input type="checkbox" v-model="isDraggable" class="sr-only peer" />
+                  <div
+                    class="w-9 h-5 bg-gray-200 peer-focus:outline-none peer-focus:ring-2 peer-focus:ring-blue-300 dark:peer-focus:ring-blue-800 rounded-full peer dark:bg-gray-700 peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-4 after:w-4 after:transition-all dark:border-gray-600 peer-checked:bg-blue-600"
+                  ></div>
+                </div>
               </label>
 
-              <label class="flex items-center gap-2 cursor-pointer">
-                <input type="checkbox" v-model="settingsStore.pixelPerfect" class="w-4 h-4 text-blue-500 focus:ring-blue-400 rounded border-gray-300 dark:border-gray-600 dark:bg-gray-700" @change="drawPreviewCanvas" />
-                <span class="text-sm dark:text-gray-200">Pixel perfect</span>
+              <div class="pl-4 border-l-2 border-gray-100 dark:border-gray-700 transition-all" :class="{ 'opacity-50 pointer-events-none': !isDraggable }">
+                <label class="flex items-center justify-between cursor-pointer group">
+                  <span class="text-sm text-gray-600 dark:text-gray-400 group-hover:text-gray-800 dark:group-hover:text-gray-200 transition-colors">Apply to all layers</span>
+                  <input type="checkbox" v-model="repositionAllLayers" class="w-4 h-4 text-blue-600 rounded border-gray-300 focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600" :disabled="!isDraggable" />
+                </label>
+              </div>
+
+              <label class="flex items-center justify-between cursor-pointer group">
+                <span class="text-sm text-gray-700 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-gray-100 transition-colors">Compare sprites</span>
+                <div class="relative inline-flex items-center cursor-pointer">
+                  <input type="checkbox" v-model="showAllSprites" class="sr-only peer" />
+                  <div
+                    class="w-9 h-5 bg-gray-200 peer-focus:outline-none peer-focus:ring-2 peer-focus:ring-blue-300 dark:peer-focus:ring-blue-800 rounded-full peer dark:bg-gray-700 peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-white after:border-gray-300 after:border after:rounded-full after:h-4 after:w-4 after:transition-all dark:border-gray-600 peer-checked:bg-blue-600"
+                  ></div>
+                </div>
               </label>
             </div>
           </div>
 
           <!-- Current frame offset display -->
-          <div v-if="currentFrameSprite" class="p-2 bg-gray-100 dark:bg-gray-700 rounded-md border border-gray-200 dark:border-gray-600">
-            <div class="flex items-center justify-between">
-              <span class="text-xs font-medium text-gray-600 dark:text-gray-400">Offset</span>
-              <span class="text-xs font-mono font-semibold text-cyan-600 dark:text-cyan-400">x: {{ currentFrameSprite.x }}, y: {{ currentFrameSprite.y }}</span>
+          <div v-if="currentFrameSprite" class="px-4 pb-4">
+            <div class="p-3 bg-gray-50 dark:bg-gray-700/50 rounded-lg border border-gray-100 dark:border-gray-700 flex items-center justify-between">
+              <span class="text-xs font-medium text-gray-500 dark:text-gray-400 uppercase tracking-wide">Offset</span>
+              <span class="text-xs font-mono font-bold text-gray-700 dark:text-gray-200">X: {{ currentFrameSprite.x }} <span class="text-gray-300 dark:text-gray-600 mx-1">|</span> Y: {{ currentFrameSprite.y }}</span>
             </div>
           </div>
 
           <!-- Frame Selection (when Compare sprites is enabled) -->
-          <div v-if="showAllSprites" class="space-y-2">
-            <div class="flex items-center justify-between">
-              <h3 class="text-sm font-semibold text-gray-700 dark:text-gray-300 uppercase tracking-wide">Frames</h3>
+          <div v-if="showAllSprites" class="border-t border-gray-100 dark:border-gray-700 p-4">
+            <div class="flex items-center justify-between mb-3">
+              <h3 class="text-xs font-bold text-gray-400 dark:text-gray-500 uppercase tracking-wider">Visible Frames</h3>
               <div class="flex gap-1">
-                <button @click="showAllFrames" class="px-2 py-1 text-xs bg-blue-500 hover:bg-blue-600 text-white rounded transition-colors">All</button>
-                <button @click="hideAllFrames" class="px-2 py-1 text-xs bg-gray-500 hover:bg-gray-600 text-white rounded transition-colors">None</button>
+                <button @click="showAllFrames" class="px-2 py-1 text-[10px] font-medium bg-blue-50 text-blue-600 hover:bg-blue-100 dark:bg-blue-900/30 dark:text-blue-300 dark:hover:bg-blue-900/50 rounded transition-colors">All</button>
+                <button @click="hideAllFrames" class="px-2 py-1 text-[10px] font-medium bg-gray-100 text-gray-600 hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-400 dark:hover:bg-gray-600 rounded transition-colors">None</button>
               </div>
             </div>
-            <div class="rounded-md border border-gray-300 dark:border-gray-600 dark:bg-gray-800">
-              <div class="max-h-[180px] overflow-y-auto">
-                <div class="space-y-0.5 p-1">
-                  <div v-for="(sprite, index) in compositeFrames" :key="sprite.id" class="flex items-center gap-2 px-2 py-1.5 hover:bg-gray-50 dark:hover:bg-gray-700 cursor-pointer rounded" @click="toggleHiddenFrame(index)">
-                    <input type="checkbox" :checked="!hiddenFrames.includes(index)" class="w-3.5 h-3.5 text-blue-500 focus:ring-blue-400 rounded border-gray-300 dark:border-gray-600 dark:bg-gray-700" @click.stop @change="toggleHiddenFrame(index)" />
-                    <div class="w-8 h-8 bg-gray-100 dark:bg-gray-700 rounded flex items-center justify-center overflow-hidden flex-shrink-0">
-                      <img :src="sprite.img.src" class="max-w-full max-h-full object-contain" :style="settingsStore.pixelPerfect ? { 'image-rendering': 'pixelated' } : {}" />
+            <div class="bg-gray-50 dark:bg-gray-900/50 rounded-lg border border-gray-200 dark:border-gray-700 p-2">
+              <div class="max-h-[150px] overflow-y-auto pr-1 custom-scrollbar">
+                <div class="space-y-1">
+                  <div v-for="(sprite, index) in compositeFrames" :key="sprite.id" class="flex items-center gap-3 px-2 py-1.5 hover:bg-white dark:hover:bg-gray-700 cursor-pointer rounded-md transition-colors group" @click="toggleHiddenFrame(index)">
+                    <input
+                      type="checkbox"
+                      :checked="!hiddenFrames.includes(index)"
+                      class="w-4 h-4 text-blue-600 rounded border-gray-300 focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600"
+                      @click.stop
+                      @change="toggleHiddenFrame(index)"
+                    />
+                    <div class="w-8 h-8 bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-600 rounded flex items-center justify-center overflow-hidden flex-shrink-0 shadow-sm">
+                      <img :src="sprite.url" class="max-w-full max-h-full object-contain" :style="settingsStore.pixelPerfect ? { 'image-rendering': 'pixelated' } : {}" />
                     </div>
-                    <span class="text-xs dark:text-gray-200">{{ index + 1 }}</span>
+                    <span class="text-xs font-mono text-gray-600 dark:text-gray-300 group-hover:text-gray-900 dark:group-hover:text-gray-100">Frame {{ index + 1 }}</span>
                   </div>
                 </div>
               </div>
@@ -161,7 +232,6 @@
   import { useSettingsStore } from '@/stores/useSettingsStore';
   import type { Layer, Sprite } from '@/types/sprites';
   import { getMaxDimensionsAcrossLayers } from '@/composables/useLayers';
-  import { useCanvas2D } from '@/composables/useCanvas2D';
   import { useZoom } from '@/composables/useZoom';
   import { useAnimationFrames } from '@/composables/useAnimationFrames';
   import { calculateNegativeSpacing } from '@/composables/useNegativeSpacing';
@@ -174,16 +244,14 @@
 
   const emit = defineEmits<{
     (e: 'updateSprite', id: string, x: number, y: number): void;
+    (e: 'updateSpriteInLayer', layerId: string, spriteId: string, x: number, y: number): void;
   }>();
 
-  const previewCanvasRef = ref<HTMLCanvasElement | null>(null);
+  const previewContainerRef = ref<HTMLDivElement | null>(null);
 
   // Get settings from store
   const settingsStore = useSettingsStore();
 
-  // Initialize composables
-  const canvas2D = useCanvas2D(previewCanvasRef);
-
   const {
     zoom,
     increase: increaseZoom,
@@ -206,14 +274,19 @@
       }
       return frames;
     },
-    onDraw: drawPreviewCanvas,
+    onDraw: () => {}, // No longer needed for canvas drawing
   });
 
   // Preview state
   const isDraggable = ref(false);
+  const repositionAllLayers = ref(false);
   const showAllSprites = ref(false);
 
   const compositeFrames = computed<Sprite[]>(() => {
+    // Show frames from the active layer for the thumbnail list
+    const activeLayer = props.layers.find(l => l.id === props.activeLayerId);
+    if (!activeLayer) {
+      // Fallback to first visible layer if no active layer
       const v = getVisibleLayers();
       const len = maxFrames();
       const arr: Sprite[] = [];
@@ -222,6 +295,8 @@
         if (s) arr.push(s);
       }
       return arr;
+    }
+    return activeLayer.sprites;
   });
 
   const currentFrameSprite = computed<Sprite | null>(() => {
@@ -230,16 +305,8 @@
     return layer.sprites[currentFrameIndex.value] || null;
   });
 
-  // Dragging state
-  const isDragging = ref(false);
-  const activeSpriteId = ref<string | null>(null);
-  const dragStartX = ref(0);
-  const dragStartY = ref(0);
-  const spritePosBeforeDrag = ref({ x: 0, y: 0 });
-
-  // Canvas drawing
-
-  const getCellDimensions = () => {
+  // Computed cell dimensions
+  const cellDimensions = computed(() => {
     const visibleLayers = getVisibleLayers();
     // If manual cell size is enabled, use manual values
     if (settingsStore.manualCellSizeEnabled) {
@@ -259,85 +326,68 @@
       cellHeight: maxHeight + negativeSpacing,
       negativeSpacing,
     };
+  });
+
+  // Helper for background image (dark mode friendly)
+  const getPreviewBackgroundImage = () => {
+    if (settingsStore.backgroundColor === 'transparent' && settingsStore.checkerboardEnabled) {
+      const color = settingsStore.darkMode ? '#4b5563' : '#d1d5db';
+      return `linear-gradient(45deg, ${color} 25%, transparent 25%), linear-gradient(-45deg, ${color} 25%, transparent 25%), linear-gradient(45deg, transparent 75%, ${color} 75%), linear-gradient(-45deg, transparent 75%, ${color} 75%)`;
+    }
+    return 'none';
   };
 
-  function drawPreviewCanvas() {
-    if (!previewCanvasRef.value || !canvas2D.ctx.value) return;
-    const visibleLayers = getVisibleLayers();
-    if (!visibleLayers.length || !visibleLayers.some(l => l.sprites.length)) return;
-
-    const { cellWidth, cellHeight, negativeSpacing } = getCellDimensions();
-
-    // Apply pixel art optimization
-    canvas2D.applySmoothing();
-
-    // Set canvas size to fit one sprite cell (expanded with negative spacing)
-    canvas2D.setCanvasSize(cellWidth, cellHeight);
-
-    // Clear canvas
-    canvas2D.clear();
-
-    // Draw grid background (cell)
-    canvas2D.fillRect(0, 0, cellWidth, cellHeight, '#f9fafb');
-
-    const frameIndex = currentFrameIndex.value;
-
-    if (showAllSprites.value) {
-      const len = maxFrames();
-      for (let i = 0; i < len; i++) {
-        if (i === frameIndex || hiddenFrames.value.includes(i)) continue;
-        visibleLayers.forEach(layer => {
-          const sprite = layer.sprites[i];
-          if (!sprite) return;
-          canvas2D.drawImage(sprite.img, negativeSpacing + sprite.x, negativeSpacing + sprite.y, 0.3);
-        });
-      }
-    }
-
-    visibleLayers.forEach(layer => {
-      const sprite = layer.sprites[frameIndex];
-      if (!sprite) return;
-      canvas2D.drawImage(sprite.img, negativeSpacing + sprite.x, negativeSpacing + sprite.y);
-    });
-
-    // Draw cell border
-    canvas2D.strokeRect(0, 0, cellWidth, cellHeight, '#e5e7eb', 1);
-  }
+  // Dragging state
+  const isDragging = ref(false);
+  const activeSpriteId = ref<string | null>(null);
+  const activeLayerId = ref<string | null>(null);
+  const dragStartX = ref(0);
+  const dragStartY = ref(0);
+  const spritePosBeforeDrag = ref({ x: 0, y: 0 });
+  const allSpritesPosBeforeDrag = ref<Map<string, { x: number; y: number }>>(new Map());
 
   // Drag functionality
-  const startDrag = (event: MouseEvent) => {
-    if (!isDraggable.value || !previewCanvasRef.value) return;
+  const startDrag = (event: MouseEvent, sprite: Sprite, layerId: string) => {
+    if (!isDraggable.value || !previewContainerRef.value) return;
 
-    const rect = previewCanvasRef.value.getBoundingClientRect();
-    const scaleX = previewCanvasRef.value.width / (rect.width / zoom.value);
-    const scaleY = previewCanvasRef.value.height / (rect.height / zoom.value);
+    const rect = previewContainerRef.value.getBoundingClientRect();
+    const scaleX = previewContainerRef.value.offsetWidth / (rect.width / zoom.value);
+    const scaleY = previewContainerRef.value.offsetHeight / (rect.height / zoom.value);
 
     const mouseX = ((event.clientX - rect.left) / zoom.value) * scaleX;
     const mouseY = ((event.clientY - rect.top) / zoom.value) * scaleY;
 
-    const activeSprite = props.layers.find(l => l.id === props.activeLayerId)?.sprites[currentFrameIndex.value];
-    const { negativeSpacing } = getCellDimensions();
-
-    // Check if click is on sprite (accounting for negative spacing offset)
-    if (activeSprite) {
-      const spriteCanvasX = negativeSpacing + activeSprite.x;
-      const spriteCanvasY = negativeSpacing + activeSprite.y;
-      if (mouseX >= spriteCanvasX && mouseX <= spriteCanvasX + activeSprite.width && mouseY >= spriteCanvasY && mouseY <= spriteCanvasY + activeSprite.height) {
+    if (repositionAllLayers.value) {
       isDragging.value = true;
-        activeSpriteId.value = activeSprite.id;
+      activeSpriteId.value = 'ALL_LAYERS'; // Special marker for all layers
       dragStartX.value = mouseX;
       dragStartY.value = mouseY;
-        spritePosBeforeDrag.value = { x: activeSprite.x, y: activeSprite.y };
+
+      // Store initial positions for all sprites in this frame from all visible layers
+      allSpritesPosBeforeDrag.value.clear();
+      const visibleLayers = getVisibleLayers();
+      visibleLayers.forEach(layer => {
+        const s = layer.sprites[currentFrameIndex.value];
+        if (s) {
+          allSpritesPosBeforeDrag.value.set(s.id, { x: s.x, y: s.y });
         }
+      });
+    } else {
+      isDragging.value = true;
+      activeSpriteId.value = sprite.id;
+      activeLayerId.value = layerId;
+      dragStartX.value = mouseX;
+      dragStartY.value = mouseY;
+      spritePosBeforeDrag.value = { x: sprite.x, y: sprite.y };
     }
   };
 
   const drag = (event: MouseEvent) => {
-    if (!isDragging.value || !activeSpriteId.value || !previewCanvasRef.value) return;
+    if (!isDragging.value || !activeSpriteId.value || !previewContainerRef.value) return;
 
-    const rect = previewCanvasRef.value.getBoundingClientRect();
-    const scaleX = previewCanvasRef.value.width / (rect.width / zoom.value);
-    const scaleY = previewCanvasRef.value.height / (rect.height / zoom.value);
+    const rect = previewContainerRef.value.getBoundingClientRect();
+    const scaleX = previewContainerRef.value.offsetWidth / (rect.width / zoom.value);
+    const scaleY = previewContainerRef.value.offsetHeight / (rect.height / zoom.value);
 
     const mouseX = ((event.clientX - rect.left) / zoom.value) * scaleX;
     const mouseY = ((event.clientY - rect.top) / zoom.value) * scaleY;
@@ -345,10 +395,32 @@
     const deltaX = Math.round(mouseX - dragStartX.value);
     const deltaY = Math.round(mouseY - dragStartY.value);
 
-    const activeSprite = props.layers.find(l => l.id === props.activeLayerId)?.sprites[currentFrameIndex.value];
-    if (!activeSprite || activeSprite.id !== activeSpriteId.value) return;
+    const { cellWidth, cellHeight, negativeSpacing } = cellDimensions.value;
 
-    const { cellWidth, cellHeight, negativeSpacing } = getCellDimensions();
+    if (activeSpriteId.value === 'ALL_LAYERS') {
+      // Move all sprites in current frame from all visible layers
+      const visibleLayers = getVisibleLayers();
+      visibleLayers.forEach(layer => {
+        const sprite = layer.sprites[currentFrameIndex.value];
+        if (!sprite) return;
+
+        const originalPos = allSpritesPosBeforeDrag.value.get(sprite.id);
+        if (!originalPos) return;
+
+        // Calculate new position with constraints
+        let newX = Math.round(originalPos.x + deltaX);
+        let newY = Math.round(originalPos.y + deltaY);
+
+        // Constrain movement within expanded cell
+        newX = Math.max(-negativeSpacing, Math.min(cellWidth - negativeSpacing - sprite.width, newX));
+        newY = Math.max(-negativeSpacing, Math.min(cellHeight - negativeSpacing - sprite.height, newY));
+
+        emit('updateSpriteInLayer', layer.id, sprite.id, newX, newY);
+      });
+    } else {
+      // Move only the active layer sprite
+      const activeSprite = props.layers.find(l => l.id === activeLayerId.value)?.sprites[currentFrameIndex.value];
+      if (!activeSprite || activeSprite.id !== activeSpriteId.value) return;
 
       // Calculate new position with constraints and round to integers
       let newX = Math.round(spritePosBeforeDrag.value.x + deltaX);
@@ -359,15 +431,16 @@
       newY = Math.max(-negativeSpacing, Math.min(cellHeight - negativeSpacing - activeSprite.height, newY));
 
       emit('updateSprite', activeSpriteId.value, newX, newY);
-    drawPreviewCanvas();
+    }
   };
 
   const stopDrag = () => {
     isDragging.value = false;
     activeSpriteId.value = null;
+    activeLayerId.value = null;
   };
 
-  const handleTouchStart = (event: TouchEvent) => {
+  const handleTouchStart = (event: TouchEvent, sprite: Sprite, layerId: string) => {
     if (!isDraggable.value) return;
 
     if (event.touches.length === 1) {
@@ -376,7 +449,7 @@
         clientX: touch.clientX,
         clientY: touch.clientY,
       });
-      startDrag(mouseEvent);
+      startDrag(mouseEvent, sprite, layerId);
     }
   };
 
@@ -399,43 +472,25 @@
 
   // Lifecycle hooks
   onMounted(() => {
-    canvas2D.initContext();
-    drawPreviewCanvas();
-
-    // Listen for forceRedraw event from App.vue
-    window.addEventListener('forceRedraw', handleForceRedraw);
+    // No longer need to initialize canvas or draw
   });
 
   onUnmounted(() => {
     stopAnimation();
-    window.removeEventListener('forceRedraw', handleForceRedraw);
   });
 
-  // Handler for force redraw event
-  const handleForceRedraw = () => {
-    const allSprites = props.layers.flatMap(l => l.sprites);
-    canvas2D.ensureIntegerPositions(allSprites);
-    canvas2D.applySmoothing();
-    drawPreviewCanvas();
-  };
-
-  // Watchers
-  watch(() => props.layers, drawPreviewCanvas, { deep: true });
-  watch(currentFrameIndex, drawPreviewCanvas);
-  watch(zoom, drawPreviewCanvas);
-  watch(isDraggable, drawPreviewCanvas);
-  watch(showAllSprites, drawPreviewCanvas);
-  watch(hiddenFrames, drawPreviewCanvas);
-  watch(() => settingsStore.pixelPerfect, drawPreviewCanvas);
-  watch(() => settingsStore.negativeSpacingEnabled, drawPreviewCanvas);
-  watch(() => settingsStore.manualCellSizeEnabled, drawPreviewCanvas);
-  watch(() => settingsStore.manualCellWidth, drawPreviewCanvas);
-  watch(() => settingsStore.manualCellHeight, drawPreviewCanvas);
-
-  // Initial draw
-  if (props.layers.some(l => l.sprites.length > 0)) {
-    drawPreviewCanvas();
-  }
+  // Watchers - most canvas-related watchers removed
+  // Keep layer watchers to ensure reactivity
+  watch(
+    () => props.layers,
+    () => {},
+    { deep: true }
+  );
+  watch(
+    () => props.activeLayerId,
+    () => {}
+  );
+  watch(currentFrameIndex, () => {});
 </script>
 
 <style scoped>

src/components/utilities/DarkModeToggle.vue

@@ -1,7 +1,5 @@
 <template>
-  <button @click="settingsStore.toggleDarkMode()" class="p-2 rounded-lg transition-colors" :class="settingsStore.darkMode ? 'text-yellow-400 hover:bg-gray-700' : 'text-gray-700 hover:bg-gray-100'" aria-label="Toggle dark mode" data-rybbit-event="toggle-dark-mode">
-    <i :class="settingsStore.darkMode ? 'fas fa-sun' : 'fas fa-moon'"></i>
-  </button>
+  <button @click="settingsStore.toggleDarkMode()" class="btn btn-secondary mr-1" aria-label="Toggle dark mode" data-rybbit-event="toggle-dark-mode"><i :class="settingsStore.darkMode ? 'fas fa-sun' : 'fas fa-moon'"></i> Theme</button>
 </template>
 
 <script setup lang="ts">

src/composables/useBlog.ts

@@ -0,0 +1,48 @@
+import matter from 'gray-matter';
+
+export interface BlogPost {
+  slug: string;
+  title: string;
+  date: string;
+  description: string;
+  image: string;
+  content: string;
+  keywords?: string;
+  author?: string;
+}
+
+export function useBlog() {
+  const getPosts = async (): Promise<BlogPost[]> => {
+    const modules = import.meta.glob('../blog/*.md', { query: '?raw', import: 'default' });
+    const posts: BlogPost[] = [];
+
+    for (const path in modules) {
+      const content = (await modules[path]()) as string;
+      const { data, content: markdownContent } = matter(content);
+      const slug = path.split('/').pop()?.replace('.md', '') || '';
+
+      posts.push({
+        slug,
+        title: data.title,
+        date: data.date,
+        description: data.description,
+        image: data.image,
+        content: markdownContent,
+        keywords: data.keywords,
+        author: data.author,
+      });
+    }
+
+    return posts.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
+  };
+
+  const getPost = async (slug: string): Promise<BlogPost | undefined> => {
+    const posts = await getPosts();
+    return posts.find(post => post.slug === slug);
+  };
+
+  return {
+    getPosts,
+    getPost,
+  };
+}

src/composables/useDragSprite.ts

@@ -1,5 +1,5 @@
 import { ref, computed, type Ref, type ComputedRef } from 'vue';
-import type { Sprite } from '@/types/sprites';
+import type { Sprite, Layer } from '@/types/sprites';
 import { getMaxDimensions } from './useSprites';
 import { calculateNegativeSpacing } from './useNegativeSpacing';
 
@@ -28,6 +28,7 @@ export interface SpritePosition {
 
 export interface DragSpriteOptions {
   sprites: Ref<Sprite[]> | ComputedRef<Sprite[]> | Sprite[];
+  layers?: Ref<Layer[]> | ComputedRef<Layer[]> | Layer[];
   columns: Ref<number> | number;
   zoom?: Ref<number>;
   allowCellSwap?: Ref<boolean>;
@@ -46,6 +47,7 @@ export function useDragSprite(options: DragSpriteOptions) {
 
   // Helper to get reactive values
   const getSprites = () => (Array.isArray(options.sprites) ? options.sprites : options.sprites.value);
+  const getLayers = () => (options.layers ? (Array.isArray(options.layers) ? options.layers : options.layers.value) : null);
   const getColumns = () => (typeof options.columns === 'number' ? options.columns : options.columns.value);
   const getZoom = () => options.zoom?.value ?? 1;
   const getAllowCellSwap = () => options.allowCellSwap?.value ?? false;
@@ -73,7 +75,6 @@ export function useDragSprite(options: DragSpriteOptions) {
   const lastMaxHeight = ref(1);
 
   const calculateMaxDimensions = () => {
-    const sprites = getSprites();
     const negativeSpacingEnabled = getNegativeSpacingEnabled();
     const manualCellSizeEnabled = getManualCellSizeEnabled();
 
@@ -87,8 +88,13 @@ export function useDragSprite(options: DragSpriteOptions) {
       return { maxWidth, maxHeight, negativeSpacing };
     }
 
-    // Otherwise, calculate based on sprite dimensions
-    const base = getMaxDimensions(sprites);
+    // Get all sprites to calculate dimensions from
+    // If layers are provided, use all visible layers; otherwise use current sprites
+    const layers = getLayers();
+    const spritesToMeasure = layers ? layers.filter(l => l.visible).flatMap(l => l.sprites) : getSprites();
+
+    // Otherwise, calculate based on sprite dimensions across all visible layers
+    const base = getMaxDimensions(spritesToMeasure);
     // When switching back from manual mode, reset to actual sprite dimensions
     const baseMaxWidth = Math.max(1, base.maxWidth);
     const baseMaxHeight = Math.max(1, base.maxHeight);
@@ -96,7 +102,7 @@ export function useDragSprite(options: DragSpriteOptions) {
     lastMaxHeight.value = baseMaxHeight;
 
     // Calculate negative spacing using shared composable
-    const negativeSpacing = calculateNegativeSpacing(sprites, negativeSpacingEnabled);
+    const negativeSpacing = calculateNegativeSpacing(spritesToMeasure, negativeSpacingEnabled);
 
     // Add negative spacing to expand each cell
     const maxWidth = baseMaxWidth + negativeSpacing;

src/composables/useFileDrop.ts

@@ -31,7 +31,7 @@ export function useFileDrop(options: FileDropOptions) {
     isDragOver.value = true;
   };
 
-  const handleDragLeave = (event: DragEvent, canvasRef?: HTMLCanvasElement | null) => {
+  const handleDragLeave = (event: DragEvent, canvasRef?: HTMLElement | null) => {
     event.preventDefault();
     event.stopPropagation();
 

src/composables/useLayers.ts

@@ -11,10 +11,11 @@ export const createEmptyLayer = (name: string): Layer => ({
   locked: false,
 });
 
+const layers = ref<Layer[]>([createEmptyLayer('Base')]);
+const activeLayerId = ref<string>(layers.value[0].id);
+const columns = ref(4);
+
 export const useLayers = () => {
-  const layers = ref<Layer[]>([createEmptyLayer('Base')]);
-  const activeLayerId = ref<string>(layers.value[0].id);
-  const columns = ref(4);
   const settingsStore = useSettingsStore();
 
   watch(columns, val => {
@@ -27,6 +28,10 @@ export const useLayers = () => {
 
   const getMaxDimensions = (sprites: Sprite[]) => getMaxDimensionsSingle(sprites);
 
+  const visibleLayers = computed(() => layers.value.filter(l => l.visible));
+
+  const hasSprites = computed(() => layers.value.some(l => l.sprites.length > 0));
+
   const updateSpritePosition = (id: string, x: number, y: number) => {
     const l = activeLayer.value;
     if (!l) return;
@@ -37,6 +42,16 @@ export const useLayers = () => {
     }
   };
 
+  const updateSpriteInLayer = (layerId: string, spriteId: string, x: number, y: number) => {
+    const l = layers.value.find(layer => layer.id === layerId);
+    if (!l) return;
+    const i = l.sprites.findIndex(s => s.id === spriteId);
+    if (i !== -1) {
+      l.sprites[i].x = Math.floor(x);
+      l.sprites[i].y = Math.floor(y);
+    }
+  };
+
   const alignSprites = (position: 'left' | 'center' | 'right' | 'top' | 'middle' | 'bottom') => {
     const l = activeLayer.value;
     if (!l || !l.sprites.length) return;
@@ -50,8 +65,8 @@ export const useLayers = () => {
       cellWidth = settingsStore.manualCellWidth;
       cellHeight = settingsStore.manualCellHeight;
     } else {
-      // Use auto-calculated dimensions based on sprite sizes
-      const { maxWidth, maxHeight } = getMaxDimensions(l.sprites);
+      // Use auto-calculated dimensions based on ALL visible layers (not just active layer)
+      const { maxWidth, maxHeight } = getMaxDimensionsAcrossLayers(visibleLayers.value);
       cellWidth = maxWidth;
       cellHeight = maxHeight;
     }
@@ -127,23 +142,30 @@ export const useLayers = () => {
       } catch {}
     }
 
-    const url = URL.createObjectURL(file);
+    const reader = new FileReader();
+    reader.onload = e => {
+      const url = e.target?.result as string;
       const img = new Image();
       img.onload = () => {
         l.sprites[i] = { id: old.id, file, img, url, width: img.width, height: img.height, x: old.x, y: old.y };
       };
       img.onerror = () => {
-      URL.revokeObjectURL(url);
+        console.error('Failed to load replacement image:', file.name);
       };
       img.src = url;
     };
+    reader.onerror = () => {
+      console.error('Failed to read replacement image file:', file.name);
+    };
+    reader.readAsDataURL(file);
+  };
 
-  const addSprite = (file: File) => addSpriteWithResize(file);
-
-  const addSpriteWithResize = (file: File) => {
+  const addSprite = (file: File) => {
     const l = activeLayer.value;
     if (!l) return;
-    const url = URL.createObjectURL(file);
+    const reader = new FileReader();
+    reader.onload = e => {
+      const url = e.target?.result as string;
       const img = new Image();
       img.onload = () => {
         const next: Sprite = {
@@ -158,12 +180,19 @@ export const useLayers = () => {
         };
         l.sprites = [...l.sprites, next];
       };
-    img.onerror = () => URL.revokeObjectURL(url);
+      img.onerror = () => {
+        console.error('Failed to load sprite image:', file.name);
+      };
       img.src = url;
     };
+    reader.onerror = () => {
+      console.error('Failed to read sprite image file:', file.name);
+    };
+    reader.readAsDataURL(file);
+  };
 
   const processImageFiles = async (files: File[]) => {
-    for (const f of files) addSpriteWithResize(f);
+    for (const f of files) addSprite(f);
   };
 
   const addLayer = (name?: string) => {
@@ -193,8 +222,6 @@ export const useLayers = () => {
     }
   };
 
-  const visibleLayers = computed(() => layers.value.filter(l => l.visible));
-
   return {
     layers,
     visibleLayers,
@@ -203,16 +230,17 @@ export const useLayers = () => {
     columns,
     getMaxDimensions,
     updateSpritePosition,
+    updateSpriteInLayer,
     updateSpriteCell,
     removeSprite,
     replaceSprite,
     addSprite,
-    addSpriteWithResize,
     processImageFiles,
     alignSprites,
     addLayer,
     removeLayer,
     moveLayer,
+    hasSprites,
   };
 };
 

src/composables/useSEO.ts

@@ -0,0 +1,71 @@
+import { useHead } from '@vueuse/head';
+
+export interface SEOMetaData {
+  title: string;
+  description: string;
+  image?: string;
+  url?: string;
+  type?: 'website' | 'article';
+  author?: string;
+  publishedTime?: string;
+  modifiedTime?: string;
+  keywords?: string;
+}
+
+const SITE_NAME = 'Spritesheet Generator';
+const SITE_URL = 'https://spritesheetgenerator.online';
+const DEFAULT_IMAGE = '/og-image.png';
+
+export function useSEO(metadata: SEOMetaData) {
+  const fullTitle = metadata.title.includes(SITE_NAME) ? metadata.title : `${metadata.title} - ${SITE_NAME}`;
+
+  const fullUrl = metadata.url ? `${SITE_URL}${metadata.url}` : SITE_URL;
+
+  const imageUrl = metadata.image ? `${SITE_URL}${metadata.image}` : `${SITE_URL}${DEFAULT_IMAGE}`;
+
+  const metaTags: any[] = [
+    // Primary Meta Tags
+    { name: 'title', content: fullTitle },
+    { name: 'description', content: metadata.description },
+    { name: 'robots', content: 'index, follow' },
+
+    // Open Graph / Facebook
+    { property: 'og:type', content: metadata.type || 'website' },
+    { property: 'og:url', content: fullUrl },
+    { property: 'og:title', content: fullTitle },
+    { property: 'og:description', content: metadata.description },
+    { property: 'og:image', content: imageUrl },
+    { property: 'og:site_name', content: SITE_NAME },
+
+    // Twitter
+    { name: 'twitter:card', content: 'summary_large_image' },
+    { name: 'twitter:url', content: fullUrl },
+    { name: 'twitter:title', content: fullTitle },
+    { name: 'twitter:description', content: metadata.description },
+    { name: 'twitter:image', content: imageUrl },
+  ];
+
+  // Add article-specific meta tags
+  if (metadata.type === 'article') {
+    if (metadata.author) {
+      metaTags.push({ property: 'article:author', content: metadata.author });
+    }
+    if (metadata.publishedTime) {
+      metaTags.push({ property: 'article:published_time', content: metadata.publishedTime });
+    }
+    if (metadata.modifiedTime) {
+      metaTags.push({ property: 'article:modified_time', content: metadata.modifiedTime });
+    }
+  }
+
+  // Add keywords if provided
+  if (metadata.keywords) {
+    metaTags.push({ name: 'keywords', content: metadata.keywords });
+  }
+
+  useHead({
+    title: fullTitle,
+    meta: metaTags,
+    link: [{ rel: 'canonical', href: fullUrl }],
+  });
+}

src/composables/useSprites.ts

@@ -87,7 +87,9 @@ export const useSprites = () => {
     const old = sprites.value[i];
     revokeIfBlob(old.url);
 
-    const url = URL.createObjectURL(file);
+    const reader = new FileReader();
+    reader.onload = e => {
+      const url = e.target?.result as string;
       const img = new Image();
       img.onload = () => {
         const next: Sprite = {
@@ -106,13 +108,19 @@ export const useSprites = () => {
       };
       img.onerror = () => {
         console.error('Failed to load replacement image:', file.name);
-      URL.revokeObjectURL(url);
       };
       img.src = url;
     };
+    reader.onerror = () => {
+      console.error('Failed to read replacement image file:', file.name);
+    };
+    reader.readAsDataURL(file);
+  };
 
   const addSprite = (file: File) => {
-    const url = URL.createObjectURL(file);
+    const reader = new FileReader();
+    reader.onload = e => {
+      const url = e.target?.result as string;
       const img = new Image();
       img.onload = () => {
         const s: Sprite = {
@@ -129,13 +137,19 @@ export const useSprites = () => {
       };
       img.onerror = () => {
         console.error('Failed to load new sprite image:', file.name);
-      URL.revokeObjectURL(url);
       };
       img.src = url;
     };
+    reader.onerror = () => {
+      console.error('Failed to read sprite image file:', file.name);
+    };
+    reader.readAsDataURL(file);
+  };
 
   const addSpriteWithResize = (file: File) => {
-    const url = URL.createObjectURL(file);
+    const reader = new FileReader();
+    reader.onload = e => {
+      const url = e.target?.result as string;
       const img = new Image();
       img.onload = () => {
         const { maxWidth, maxHeight } = getMaxDimensions(sprites.value);
@@ -180,17 +194,23 @@ export const useSprites = () => {
       };
       img.onerror = () => {
         console.error('Failed to load new sprite image:', file.name);
-      URL.revokeObjectURL(url);
       };
       img.src = url;
     };
+    reader.onerror = () => {
+      console.error('Failed to read sprite image file:', file.name);
+    };
+    reader.readAsDataURL(file);
+  };
 
   const processImageFiles = (files: File[]) => {
     Promise.all(
       files.map(
         file =>
-          new Promise<Sprite>(resolve => {
-            const url = URL.createObjectURL(file);
+          new Promise<Sprite>((resolve, reject) => {
+            const reader = new FileReader();
+            reader.onload = e => {
+              const url = e.target?.result as string;
               const img = new Image();
               img.onload = () => {
                 resolve({
@@ -204,11 +224,19 @@ export const useSprites = () => {
                   y: 0,
                 });
               };
+              img.onerror = () => reject(new Error(`Failed to load image: ${file.name}`));
               img.src = url;
+            };
+            reader.onerror = () => reject(new Error(`Failed to read file: ${file.name}`));
+            reader.readAsDataURL(file);
           })
       )
-    ).then(newSprites => {
+    )
+      .then(newSprites => {
         sprites.value = [...sprites.value, ...newSprites];
+      })
+      .catch(err => {
+        console.error('Error processing image files:', err);
       });
   };
 

src/composables/useStructuredData.ts

@@ -0,0 +1,200 @@
+import { useHead } from '@vueuse/head';
+
+const SITE_URL = 'https://spritesheetgenerator.online';
+const SITE_NAME = 'Spritesheet Generator';
+
+export interface BlogPostSchema {
+  title: string;
+  description: string;
+  author: string;
+  datePublished: string;
+  dateModified?: string;
+  image: string;
+  url: string;
+}
+
+export interface BreadcrumbItem {
+  name: string;
+  url: string;
+}
+
+export interface FAQItem {
+  question: string;
+  answer: string;
+}
+
+export function useStructuredData() {
+  // Organization Schema
+  const addOrganizationSchema = () => {
+    const schema = {
+      '@context': 'https://schema.org',
+      '@type': 'Organization',
+      name: SITE_NAME,
+      url: SITE_URL,
+      logo: `${SITE_URL}/og-image.png`,
+      description: 'Free online tool to create spritesheets for game development',
+      sameAs: ['https://gitea.adhd.sh/root/spritesheet-generator', 'https://discord.gg/JTev3nzeDa'],
+    };
+
+    useHead({
+      script: [
+        {
+          type: 'application/ld+json',
+          children: JSON.stringify(schema),
+        },
+      ],
+    });
+  };
+
+  // WebSite Schema
+  const addWebSiteSchema = () => {
+    const schema = {
+      '@context': 'https://schema.org',
+      '@type': 'WebSite',
+      name: SITE_NAME,
+      url: SITE_URL,
+      description: 'Create professional spritesheets for your game development projects',
+      potentialAction: {
+        '@type': 'SearchAction',
+        target: `${SITE_URL}/blog?search={search_term_string}`,
+        'query-input': 'required name=search_term_string',
+      },
+    };
+
+    useHead({
+      script: [
+        {
+          type: 'application/ld+json',
+          children: JSON.stringify(schema),
+        },
+      ],
+    });
+  };
+
+  // BlogPosting Schema
+  const addBlogPostSchema = (post: BlogPostSchema) => {
+    const schema = {
+      '@context': 'https://schema.org',
+      '@type': 'BlogPosting',
+      headline: post.title,
+      description: post.description,
+      image: `${SITE_URL}${post.image}`,
+      author: {
+        '@type': 'Person',
+        name: post.author,
+      },
+      publisher: {
+        '@type': 'Organization',
+        name: SITE_NAME,
+        logo: {
+          '@type': 'ImageObject',
+          url: `${SITE_URL}/og-image.png`,
+        },
+      },
+      datePublished: post.datePublished,
+      dateModified: post.dateModified || post.datePublished,
+      mainEntityOfPage: {
+        '@type': 'WebPage',
+        '@id': `${SITE_URL}${post.url}`,
+      },
+    };
+
+    useHead({
+      script: [
+        {
+          type: 'application/ld+json',
+          children: JSON.stringify(schema),
+        },
+      ],
+    });
+  };
+
+  // Breadcrumb Schema
+  const addBreadcrumbSchema = (items: BreadcrumbItem[]) => {
+    const schema = {
+      '@context': 'https://schema.org',
+      '@type': 'BreadcrumbList',
+      itemListElement: items.map((item, index) => ({
+        '@type': 'ListItem',
+        position: index + 1,
+        name: item.name,
+        item: `${SITE_URL}${item.url}`,
+      })),
+    };
+
+    useHead({
+      script: [
+        {
+          type: 'application/ld+json',
+          children: JSON.stringify(schema),
+        },
+      ],
+    });
+  };
+
+  // Blog List Schema
+  const addBlogListSchema = (posts: BlogPostSchema[]) => {
+    const schema = {
+      '@context': 'https://schema.org',
+      '@type': 'Blog',
+      name: `${SITE_NAME} Blog`,
+      description: 'Latest articles about sprite sheet generation and game development',
+      url: `${SITE_URL}/blog`,
+      blogPost: posts.map(post => ({
+        '@type': 'BlogPosting',
+        headline: post.title,
+        description: post.description,
+        image: `${SITE_URL}${post.image}`,
+        author: {
+          '@type': 'Person',
+          name: post.author,
+        },
+        datePublished: post.datePublished,
+        url: `${SITE_URL}${post.url}`,
+      })),
+    };
+
+    useHead({
+      script: [
+        {
+          type: 'application/ld+json',
+          children: JSON.stringify(schema),
+        },
+      ],
+    });
+  };
+
+  // FAQ Schema
+  const addFAQSchema = (faqs: FAQItem[]) => {
+    const schema = {
+      '@context': 'https://schema.org',
+      '@type': 'FAQPage',
+      mainEntity: faqs.map(faq => ({
+        '@type': 'Question',
+        name: faq.question,
+        acceptedAnswer: {
+          '@type': 'Answer',
+          text: faq.answer,
+        },
+      })),
+    };
+
+    useHead({
+      script: [
+        {
+          type: 'application/ld+json',
+          children: JSON.stringify(schema),
+        },
+      ],
+    });
+  };
+
+  return {
+    addOrganizationSchema,
+    addWebSiteSchema,
+    addBlogPostSchema,
+    addBreadcrumbSchema,
+    addBlogListSchema,
+    addFAQSchema,
+  };
+}

src/main.ts

@@ -1,11 +1,21 @@
+import { Buffer } from 'buffer';
+// @ts-ignore
+window.Buffer = Buffer;
+
 import './assets/main.css';
 
 import { createApp } from 'vue';
 import { createPinia } from 'pinia';
+import { createHead } from '@vueuse/head';
 import App from './App.vue';
 
+import router from './router';
+
 const app = createApp(App);
+const head = createHead();
 
 app.use(createPinia());
+app.use(router);
+app.use(head);
 
 app.mount('#app');

src/router/index.ts

@@ -0,0 +1,52 @@
+import { createRouter, createWebHistory } from 'vue-router';
+import HomeView from '../views/HomeView.vue';
+
+const router = createRouter({
+  history: createWebHistory(import.meta.env.BASE_URL),
+  routes: [
+    {
+      path: '/',
+      name: 'home',
+      component: HomeView,
+    },
+    {
+      path: '/about',
+      name: 'about',
+      component: () => import('../views/AboutUs.vue'),
+    },
+    {
+      path: '/contact',
+      name: 'contact',
+      component: () => import('../views/Contact.vue'),
+    },
+    {
+      path: '/privacy-policy',
+      name: 'privacy-policy',
+      component: () => import('../views/PrivacyPolicy.vue'),
+    },
+    {
+      path: '/faq',
+      name: 'faq',
+      component: () => import('../views/FAQ.vue'),
+    },
+    {
+      path: '/blog',
+      name: 'blog-overview',
+      component: () => import('../views/BlogOverview.vue'),
+    },
+    {
+      path: '/blog/:slug',
+      name: 'blog-detail',
+      component: () => import('../views/BlogDetail.vue'),
+    },
+  ],
+  scrollBehavior(to, from, savedPosition) {
+    if (savedPosition) {
+      return savedPosition;
+    } else {
+      return { top: 0 };
+    }
+  },
+});
+
+export default router;

src/stores/useSettingsStore.ts

@@ -8,6 +8,7 @@ const backgroundColor = ref('transparent');
 const manualCellSizeEnabled = ref(false);
 const manualCellWidth = ref(64);
 const manualCellHeight = ref(64);
+const checkerboardEnabled = ref(false);
 
 // Initialize dark mode from localStorage or system preference
 if (typeof window !== 'undefined') {
@@ -81,6 +82,10 @@ export const useSettingsStore = defineStore('settings', () => {
     setManualCellHeight(height);
   }
 
+  function toggleCheckerboard() {
+    checkerboardEnabled.value = !checkerboardEnabled.value;
+  }
+
   return {
     pixelPerfect,
     darkMode,
@@ -89,6 +94,7 @@ export const useSettingsStore = defineStore('settings', () => {
     manualCellSizeEnabled,
     manualCellWidth,
     manualCellHeight,
+    checkerboardEnabled,
     togglePixelPerfect,
     setPixelPerfect,
     toggleDarkMode,
@@ -99,5 +105,6 @@ export const useSettingsStore = defineStore('settings', () => {
     setManualCellWidth,
     setManualCellHeight,
     setManualCellSize,
+    toggleCheckerboard,
   };
 });

src/views/AboutUs.vue

@@ -0,0 +1,38 @@
+<script setup lang="ts">
+  import { useSEO } from '../composables/useSEO';
+  import { useStructuredData } from '../composables/useStructuredData';
+
+  const { addBreadcrumbSchema } = useStructuredData();
+
+  // Set SEO synchronously
+  useSEO({
+    title: 'About Us - Our Mission & Story',
+    description: 'Learn about Spritesheet Generator, a free tool designed to help game developers and artists streamline their workflow with optimized spritesheet creation.',
+    url: '/about',
+    type: 'website',
+    keywords: 'about spritesheet generator, game development tools, open source sprite editor',
+  });
+
+  addBreadcrumbSchema([
+    { name: 'Home', url: '/' },
+    { name: 'About Us', url: '/about' },
+  ]);
+</script>
+
+<template>
+  <div class="w-full">
+    <div class="bg-white/80 dark:bg-gray-900/80 backdrop-blur-md rounded-3xl shadow-2xl border border-gray-200/50 dark:border-gray-700/50 p-8 sm:p-12">
+      <h1 class="text-3xl sm:text-4xl font-extrabold text-gray-900 dark:text-white mb-6">About Us</h1>
+      <div class="space-y-6">
+        <p class="text-gray-700 dark:text-gray-300 leading-relaxed">Welcome to Spritesheet Generator, a tool designed to help game developers and artists streamline their workflow.</p>
+        <p class="text-gray-700 dark:text-gray-300 leading-relaxed">
+          Our mission is to provide a simple, powerful, and free tool for creating optimized spritesheets directly in your browser. Whether you are an indie developer, a hobbyist, or part of a large studio, we hope this tool makes your life easier.
+        </p>
+        <div class="space-y-3">
+          <h3 class="text-xl font-bold text-gray-900 dark:text-white">Our story</h3>
+          <p class="text-gray-700 dark:text-gray-300 leading-relaxed">This project started as a small utility for personal game jams and has grown into a full-featured spritesheet packer. We believe in open source and community-driven development.</p>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>

src/views/BlogDetail.vue

@@ -0,0 +1,152 @@
+<script setup lang="ts">
+  import { ref, onMounted, computed, watch } from 'vue';
+  import { useRoute, useRouter } from 'vue-router';
+  import { useBlog, type BlogPost } from '../composables/useBlog';
+  import { useHead } from '@vueuse/head';
+  import { marked } from 'marked';
+
+  const route = useRoute();
+  const router = useRouter();
+  const { getPost } = useBlog();
+  const post = ref<BlogPost | undefined>(undefined);
+  const renderedContent = ref('');
+
+  const slug = computed(() => route.params.slug as string);
+
+  // Reactive SEO data that updates when post loads
+  const pageTitle = computed(() => (post.value ? `${post.value.title} - Spritesheet Generator` : 'Blog Post - Spritesheet Generator'));
+
+  const pageDescription = computed(() => post.value?.description || 'Read our latest article about spritesheet generation and game development.');
+
+  const pageImage = computed(() => (post.value?.image ? `https://spritesheetgenerator.online${post.value.image}` : 'https://spritesheetgenerator.online/og-image.png'));
+
+  const pageUrl = computed(() => `https://spritesheetgenerator.online/blog/${slug.value}`);
+
+  const keywords = computed(() => post.value?.keywords || 'sprite sheet, game development, blog');
+
+  // Dynamic meta tags using reactive computed values
+  useHead({
+    title: pageTitle,
+    meta: [
+      { name: 'title', content: pageTitle },
+      { name: 'description', content: pageDescription },
+      { name: 'keywords', content: keywords },
+      { name: 'robots', content: 'index, follow' },
+
+      // Open Graph
+      { property: 'og:type', content: 'article' },
+      { property: 'og:url', content: pageUrl },
+      { property: 'og:title', content: pageTitle },
+      { property: 'og:description', content: pageDescription },
+      { property: 'og:image', content: pageImage },
+      { property: 'og:site_name', content: 'Spritesheet Generator' },
+      { property: 'article:author', content: computed(() => post.value?.author || 'streetshadow') },
+      { property: 'article:published_time', content: computed(() => post.value?.date || '') },
+
+      // Twitter
+      { name: 'twitter:card', content: 'summary_large_image' },
+      { name: 'twitter:url', content: pageUrl },
+      { name: 'twitter:title', content: pageTitle },
+      { name: 'twitter:description', content: pageDescription },
+      { name: 'twitter:image', content: pageImage },
+    ],
+    link: [{ rel: 'canonical', href: pageUrl }],
+    script: computed(() => {
+      const scripts = [];
+
+      // Breadcrumb schema
+      scripts.push({
+        type: 'application/ld+json',
+        children: JSON.stringify({
+          '@context': 'https://schema.org',
+          '@type': 'BreadcrumbList',
+          itemListElement: [
+            {
+              '@type': 'ListItem',
+              position: 1,
+              name: 'Home',
+              item: 'https://spritesheetgenerator.online/',
+            },
+            {
+              '@type': 'ListItem',
+              position: 2,
+              name: 'Blog',
+              item: 'https://spritesheetgenerator.online/blog',
+            },
+            {
+              '@type': 'ListItem',
+              position: 3,
+              name: post.value?.title || 'Article',
+              item: pageUrl.value,
+            },
+          ],
+        }),
+      });
+
+      // Blog post schema
+      if (post.value) {
+        scripts.push({
+          type: 'application/ld+json',
+          children: JSON.stringify({
+            '@context': 'https://schema.org',
+            '@type': 'BlogPosting',
+            headline: post.value.title,
+            description: post.value.description,
+            image: `https://spritesheetgenerator.online${post.value.image}`,
+            author: {
+              '@type': 'Person',
+              name: post.value.author || 'streetshadow',
+            },
+            publisher: {
+              '@type': 'Organization',
+              name: 'Spritesheet Generator',
+              logo: {
+                '@type': 'ImageObject',
+                url: 'https://spritesheetgenerator.online/og-image.png',
+              },
+            },
+            datePublished: post.value.date,
+            dateModified: post.value.date,
+            mainEntityOfPage: {
+              '@type': 'WebPage',
+              '@id': pageUrl.value,
+            },
+          }),
+        });
+      }
+
+      return scripts;
+    }),
+  });
+
+  onMounted(async () => {
+    post.value = await getPost(slug.value);
+
+    if (post.value) {
+      renderedContent.value = await marked(post.value.content);
+    } else {
+      router.push({ name: 'blog-overview' });
+    }
+  });
+</script>
+
+<template>
+  <div class="w-full">
+    <div v-if="post">
+      <RouterLink :to="{ name: 'blog-overview' }" class="inline-flex items-center text-gray-600 dark:text-gray-400 hover:text-gray-900 dark:hover:text-white mb-6 transition-colors" title="Return to blog overview" aria-label="Navigate back to blog overview page">
+        <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7" />
+        </svg>
+        Back to overview
+      </RouterLink>
+
+      <h1 class="text-4xl font-bold mb-4 text-gray-900 dark:text-white">{{ post.title }}</h1>
+      <p class="text-gray-600 dark:text-gray-400 text-sm mb-8">{{ post.date }}</p>
+      <!-- Image is intentionally omitted here as per requirements -->
+      <div class="prose max-w-none" v-html="renderedContent"></div>
+    </div>
+    <div v-else class="text-center py-12">
+      <p class="text-xl text-gray-600 dark:text-gray-400">Loading...</p>
+    </div>
+  </div>
+</template>

src/views/BlogOverview.vue

@@ -0,0 +1,48 @@
+<script setup lang="ts">
+  import { ref, onMounted } from 'vue';
+  import { useBlog, type BlogPost } from '../composables/useBlog';
+  import { useSEO } from '../composables/useSEO';
+  import { useStructuredData } from '../composables/useStructuredData';
+  import { RouterLink } from 'vue-router';
+
+  const { getPosts } = useBlog();
+  const { addBreadcrumbSchema } = useStructuredData();
+  const posts = ref<BlogPost[]>([]);
+
+  // Set SEO meta tags synchronously
+  useSEO({
+    title: 'Blog - Latest Articles on Spritesheet Generation',
+    description: 'Explore our latest articles about sprite sheet generation, game development, pixel art, and sprite animation techniques.',
+    url: '/blog',
+    type: 'website',
+    keywords: 'sprite sheet blog, game development articles, pixel art tutorials, sprite animation',
+  });
+
+  // Add breadcrumb synchronously
+  addBreadcrumbSchema([
+    { name: 'Home', url: '/' },
+    { name: 'Blog', url: '/blog' },
+  ]);
+
+  onMounted(async () => {
+    posts.value = await getPosts();
+  });
+</script>
+
+<template>
+  <div class="w-full">
+    <h1 class="text-4xl font-bold mb-8 text-gray-900 dark:text-white">Blog</h1>
+    <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-6">
+      <article v-for="post in posts" :key="post.slug" class="bg-white dark:bg-gray-800 rounded-lg shadow-md overflow-hidden hover:shadow-lg transition-shadow duration-300 flex flex-col h-full">
+        <RouterLink :to="{ name: 'blog-detail', params: { slug: post.slug } }" class="flex flex-col h-full" :title="`Read more: ${post.title}`" :aria-label="`Read full blog post: ${post.title}`">
+          <img :src="post.image" :alt="post.title" class="w-full h-48 object-cover" loading="lazy" decoding="async" />
+          <div class="p-6 flex-1 flex flex-col">
+            <h2 class="text-xl font-bold mb-2 text-gray-900 dark:text-white line-clamp-2">{{ post.title }}</h2>
+            <p class="text-gray-600 dark:text-gray-400 text-xs mb-3">{{ post.date }}</p>
+            <p class="text-gray-700 dark:text-gray-300 text-sm line-clamp-3 flex-1">{{ post.description }}</p>
+          </div>
+        </RouterLink>
+      </article>
+    </div>
+  </div>
+</template>

src/views/Contact.vue

@@ -0,0 +1,62 @@
+<script setup lang="ts">
+  import { useSEO } from '../composables/useSEO';
+  import { useStructuredData } from '../composables/useStructuredData';
+
+  const { addBreadcrumbSchema } = useStructuredData();
+
+  // Set SEO synchronously
+  useSEO({
+    title: 'Contact Us - Get in Touch',
+    description: "Contact the Spritesheet Generator team. Join our Discord community or report bugs and contribute on Gitea. We'd love to hear from you!",
+    url: '/contact',
+    type: 'website',
+    keywords: 'contact spritesheet generator, support, discord, gitea',
+  });
+
+  addBreadcrumbSchema([
+    { name: 'Home', url: '/' },
+    { name: 'Contact', url: '/contact' },
+  ]);
+</script>
+
+<template>
+  <div class="w-full">
+    <div class="bg-white/80 dark:bg-gray-900/80 backdrop-blur-md rounded-3xl shadow-2xl border border-gray-200/50 dark:border-gray-700/50 p-8 sm:p-12">
+      <h1 class="text-3xl sm:text-4xl font-extrabold text-gray-900 dark:text-white mb-6">Contact Us</h1>
+      <div class="space-y-6">
+        <p class="text-gray-700 dark:text-gray-300 leading-relaxed">We'd love to hear from you! Whether you have a question, feedback, or just want to say hi, feel free to reach out.</p>
+        <div class="flex flex-col gap-4 mt-8">
+          <a
+            href="https://discord.gg/JTev3nzeDa"
+            target="_blank"
+            rel="noopener noreferrer"
+            class="flex items-center gap-3 p-4 bg-gray-100 dark:bg-gray-800 rounded-xl hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors no-underline"
+            title="Join our Discord community"
+            aria-label="Join Discord server"
+          >
+            <i class="fab fa-discord text-2xl text-[#5865F2]"></i>
+            <div>
+              <div class="font-bold text-gray-900 dark:text-white">Join our Discord</div>
+              <div class="text-sm text-gray-600 dark:text-gray-400">Chat with the community and developers</div>
+            </div>
+          </a>
+
+          <a
+            href="https://gitea.adhd.sh/root/spritesheet-generator"
+            target="_blank"
+            rel="noopener noreferrer"
+            class="flex items-center gap-3 p-4 bg-gray-100 dark:bg-gray-800 rounded-xl hover:bg-gray-200 dark:hover:bg-gray-700 transition-colors no-underline"
+            title="View source code and report bugs"
+            aria-label="View source code repository"
+          >
+            <i class="fab fa-github text-2xl text-gray-900 dark:text-white"></i>
+            <div>
+              <div class="font-bold text-gray-900 dark:text-white">Source Code</div>
+              <div class="text-sm text-gray-600 dark:text-gray-400">Report bugs or contribute on Gitea</div>
+            </div>
+          </a>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>

src/views/FAQ.vue

@@ -0,0 +1,106 @@
+<script setup lang="ts">
+  import { useSEO } from '../composables/useSEO';
+  import { useStructuredData } from '../composables/useStructuredData';
+
+  const { addFAQSchema, addBreadcrumbSchema } = useStructuredData();
+
+  // Set SEO synchronously
+  useSEO({
+    title: 'FAQ - Frequently Asked Questions',
+    description: 'Find answers to common questions about the Spritesheet Generator. Learn about supported formats, export options, and how to use the tool effectively.',
+    url: '/faq',
+    type: 'website',
+    keywords: 'faq, spritesheet generator help, questions, support, documentation',
+  });
+
+  addBreadcrumbSchema([
+    { name: 'Home', url: '/' },
+    { name: 'FAQ', url: '/faq' },
+  ]);
+
+  const faqs = [
+    {
+      question: 'What is a sprite sheet generator?',
+      answer: 'A sprite sheet generator is a tool that combines multiple images into a single file. Our sprite maker online simplifies the process of making a sprite sheet, allowing you to create a sprite sheet for games and websites instantly.',
+    },
+    {
+      question: 'How do I create a sprite sheet from images?',
+      answer: 'To create a sprite sheet, simply drag and drop your files into our images to sprite sheet converter. We support various formats, making it easy to turn PNG to sprite sheet or use our gif to sprite sheet converter.',
+    },
+    {
+      question: 'Can I use this as a 2D sprite generator for games?',
+      answer: 'Yes! This tool acts as a powerful 2D sprite generator. Whether you need a character sprite sheet generator, an FNF sprite generator, or just a general sprite image generator, our tool handles the packing efficiently.',
+    },
+    {
+      question: 'Do you support GIF to sprite sheet conversion?',
+      answer: 'Absolutely. You can turn gif into sprite sheet layouts easily. Our tool creates a clean sprite strip or sprite grid from your animations, functioning as a comprehensive image to sprite animation tool.',
+    },
+    {
+      question: 'Is there a specific sprite sheet template?',
+      answer: 'No fixed sprite sheet template is needed. Our image sprite generator automatically arranges your uploads. It works as a flexible sprite converter for all your needs.',
+    },
+    {
+      question: 'How does the PNG to sprite conversion work?',
+      answer: 'Our PNG to sprite feature is simple. Upload your images, and the sprite sheet converter stitches them together. It is the easiest way to image to sprite converter workflows.',
+    },
+    {
+      question: 'Can I create a sprite sheet for Unity or Godot?',
+      answer: 'Yes, you can create a sprite sheet compatible with major game engines like Unity, Godot, and Unreal Engine. Our sprite sheet converter exports standard formats that work seamlessly with these tools.',
+    },
+    {
+      question: 'What is the difference between a sprite strip and a sprite grid?',
+      answer: 'A sprite strip arranges images in a single horizontal or vertical row, ideal for simple animations. A sprite grid arranges images in rows and columns, which is better for larger collections or character sprite sheets.',
+    },
+    {
+      question: 'Can I preview the image to sprite animation?',
+      answer: 'Yes, our tool includes a preview feature. After using the image to sprite animation function, you can play back the sequence to ensure your animation looks perfect before exporting.',
+    },
+    {
+      question: 'Does this sprite maker online work on mobile devices?',
+      answer: 'Our sprite maker online is fully responsive and works on most modern mobile devices and tablets, allowing you to create sprite sheets on the go.',
+    },
+    {
+      question: 'How many images can I add to the images to sprite sheet converter?',
+      answer: 'There is no hard limit on the number of images you can add to the images to sprite sheet converter, but performance may vary depending on your device and the size of the images.',
+    },
+  ];
+
+  addFAQSchema(faqs);
+</script>
+
+<template>
+  <div class="w-full">
+    <div class="bg-white/80 dark:bg-gray-900/80 backdrop-blur-md rounded-3xl shadow-2xl border border-gray-200/50 dark:border-gray-700/50 p-8 sm:p-12">
+      <h1 class="text-3xl sm:text-4xl font-extrabold text-gray-900 dark:text-white mb-6">Frequently Asked Questions</h1>
+      <p class="text-gray-700 dark:text-gray-300 leading-relaxed mb-10">Got questions? We've got answers. If you can't find what you're looking for, feel free to <router-link to="/contact" class="text-blue-600 dark:text-blue-400 hover:underline">contact us</router-link>.</p>
+
+      <div class="space-y-6">
+        <details
+          v-for="(faq, index) in faqs"
+          :key="index"
+          class="group bg-gray-50 dark:bg-gray-800/50 rounded-xl border border-gray-200 dark:border-gray-700 overflow-hidden transition-all duration-300 hover:shadow-md open:bg-white dark:open:bg-gray-800 open:shadow-lg open:border-blue-200 dark:open:border-blue-900"
+        >
+          <summary class="flex items-center justify-between p-6 cursor-pointer list-none">
+            <h3 class="text-lg font-bold text-gray-900 dark:text-white pr-4">{{ faq.question }}</h3>
+            <span class="transform transition-transform duration-300 group-open:rotate-180 text-gray-500 dark:text-gray-400">
+              <i class="fas fa-chevron-down"></i>
+            </span>
+          </summary>
+          <div class="px-6 pb-6 text-gray-700 dark:text-gray-300 leading-relaxed border-t border-gray-100 dark:border-gray-700/50 pt-4">
+            {{ faq.answer }}
+          </div>
+        </details>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+  /* Remove default triangle for details/summary */
+  details > summary {
+    list-style: none;
+  }
+  details > summary::-webkit-details-marker {
+    display: none;
+  }
+</style>

src/views/HomeView.seo.ts

@@ -0,0 +1,53 @@
+import { useSEO } from '../composables/useSEO';
+import { useStructuredData } from '../composables/useStructuredData';
+import { useHead } from '@vueuse/head';
+
+export function useHomeViewSEO() {
+  const { addOrganizationSchema, addWebSiteSchema } = useStructuredData();
+
+  // Set page SEO synchronously
+  useSEO({
+    title: 'Spritesheet Generator - Create Game Spritesheets Online',
+    description: 'Free online tool to create spritesheets for game development. Upload sprites, arrange them, and export as a spritesheet with animation preview.',
+    url: '/',
+    type: 'website',
+    keywords: 'spritesheet generator, sprite sheet maker, game development, pixel art, sprite animation, game assets, 2D game tools',
+  });
+
+  // Add organization schema
+  addOrganizationSchema();
+
+  // Add website schema
+  addWebSiteSchema();
+
+  // Add SoftwareApplication schema
+  useHead({
+    script: [
+      {
+        type: 'application/ld+json',
+        children: JSON.stringify({
+          '@context': 'https://schema.org',
+          '@type': 'SoftwareApplication',
+          name: 'Spritesheet Generator',
+          applicationCategory: 'DesignApplication',
+          offers: {
+            '@type': 'Offer',
+            price: '0',
+            priceCurrency: 'USD',
+          },
+          operatingSystem: 'Web Browser',
+          description: 'Free online tool to create spritesheets for game development. Upload sprites, arrange them, and export as a spritesheet with animation preview.',
+          url: 'https://spritesheetgenerator.online',
+          screenshot: 'https://spritesheetgenerator.online/og-image.png',
+          featureList: ['Free sprite editor', 'Automatic spritesheet generation', 'Customizable grid layouts', 'Animation preview', 'Cross-platform compatibility', 'Zero installation required', 'Batch processing', 'Multiple export formats (PNG, JPG, GIF, ZIP, JSON)'],
+          browserRequirements: 'Requires JavaScript. Requires HTML5.',
+          aggregateRating: {
+            '@type': 'AggregateRating',
+            ratingValue: '4.8',
+            ratingCount: '127',
+          },
+        }),
+      },
+    ],
+  });
+}

src/views/HomeView.vue

@@ -0,0 +1,434 @@
+<template>
+  <main class="flex flex-col flex-1 bg-white/80 dark:bg-gray-900/80 backdrop-blur-md rounded-3xl shadow-2xl border border-gray-200/50 dark:border-gray-700/50 transition-all duration-300" :class="{ 'lg:overflow-hidden': layers.some(l => l.sprites.length) }">
+    <!-- Welcome state -->
+    <div v-if="!layers.some(l => l.sprites.length)" class="p-6 sm:p-10">
+      <div class="mb-8">
+        <div class="flex items-center justify-between gap-4 mb-1">
+          <p class="text-2xl font-bold text-gray-800 dark:text-gray-100">Upload sprites or single image</p>
+          <a href="https://ko-fi.com/X8X416D44P" target="_blank" rel="noopener noreferrer">
+            <img height="36" style="border: 0px; height: 36px" src="https://storage.ko-fi.com/cdn/kofi6.png?v=6" alt="Buy Me a Coffee at ko-fi.com" />
+          </a>
+        </div>
+        <p class="text-sm text-gray-600 dark:text-gray-400">Drag and drop images or import from JSON</p>
+      </div>
+      <file-uploader @upload-sprites="handleSpritesUpload" />
+
+      <div class="mt-10">
+        <div class="prose prose-lg dark:prose-invert max-w-none">
+          <div>
+            <h1 class="text-2xl font-bold text-gray-800 dark:text-gray-100 mb-4">Welcome to Spritesheet generator</h1>
+            <p class="text-gray-700 dark:text-gray-300 mb-4">Create spritesheets for your game development and animation projects with our completely free, open-source Spritesheet generator.</p>
+            <p class="text-gray-700 dark:text-gray-300 mb-6">This powerful online tool lets you upload individual sprite images and automatically arrange them into optimized sprite sheets with customizable layouts - perfect for indie developers, animators, and studios of any size.</p>
+            <h3 class="text-2xl font-bold text-gray-800 dark:text-gray-100 mb-4">Key features of this sprite editor</h3>
+            <ul class="text-gray-700 dark:text-gray-300 mb-6 space-y-2 list-disc">
+              <li><strong>Free sprite editor</strong>: Edit, organize, and optimize your game sprites directly in your browser</li>
+              <li><strong>Automatic spritesheet generation</strong>: Convert multiple PNG, JPG, or GIF images into efficient sprite atlases</li>
+              <li><strong>Customizable grid layouts</strong>: Adjust spacing, padding, and arrangement for pixel-perfect results</li>
+              <li><strong>Animation preview</strong>: Test your sprite animations before exporting</li>
+              <li><strong>Cross-platform compatibility</strong>: Works with Unity, Godot, Phaser, Pygame, and other game engines</li>
+              <li><strong>Zero installation required</strong>: No downloads - use our web-based sprite sheet maker instantly</li>
+              <li><strong>Batch processing</strong>: Upload and process multiple sprites simultaneously</li>
+              <li><strong>Export options</strong>: Download spritesheet as PNG, JPG, GIF, ZIP or JSON.</li>
+            </ul>
+            <div>
+              <h4 class="text-xl font-bold text-gray-800 dark:text-gray-100 mb-4 flex items-center gap-2">
+                <i class="fas fa-play-circle text-gray-800 dark:text-gray-200"></i>
+                How it works
+              </h4>
+              <video controls playsinline class="w-full rounded-lg shadow-lg border border-gray-200 dark:border-gray-700" title="Spritesheet generator tutorial" aria-label="Spritesheet generator tutorial">
+                <source src="@/assets/demo.mp4" type="video/mp4" />
+              </video>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Two-column layout: Left controls, Right preview -->
+    <div v-if="layers.some(l => l.sprites.length)" class="flex flex-col flex-1 lg:grid lg:grid-cols-[380px_1fr] xl:grid-cols-[420px_1fr] lg:overflow-hidden">
+      <!-- Left sidebar - Controls -->
+      <div class="p-6 bg-gray-50/50 dark:bg-gray-900/30 border-b lg:border-b-0 lg:border-r border-gray-200 dark:border-gray-700 lg:overflow-y-auto lg:overflow-x-auto">
+        <div class="space-y-8">
+          <!-- Upload Section -->
+          <section>
+            <div class="flex items-center justify-between mb-3">
+              <h3 class="flex items-center gap-2 text-base font-bold text-gray-800 dark:text-gray-100">
+                <i class="text-sm text-gray-700 dark:text-gray-300 fas fa-upload"></i>
+                Upload
+              </h3>
+              <button @click="openJSONImportDialog" class="btn btn-dark btn-sm" data-rybbit-event="import-json">
+                <i class="text-xs fas fa-file-import"></i>
+                <span>JSON</span>
+              </button>
+            </div>
+            <button
+              class="w-full p-6 text-center border-2 border-dashed border-gray-300 dark:border-gray-600 rounded-xl hover:border-gray-500 dark:hover:border-gray-400 hover:bg-gray-50 dark:hover:bg-gray-800/50 transition-all cursor-pointer focus:outline-none focus:ring-2 focus:ring-gray-500 group"
+              @click="openFileDialog"
+            >
+              <i class="fas fa-plus-circle text-3xl text-gray-400 dark:text-gray-500 group-hover:text-gray-600 dark:group-hover:text-gray-300 mb-3 transition-colors"></i>
+              <p class="text-sm font-medium text-gray-600 dark:text-gray-400 group-hover:text-gray-900 dark:group-hover:text-gray-200 transition-colors">Add sprites</p>
+            </button>
+            <input ref="uploadInput" type="file" multiple accept="image/*" class="hidden" @change="handleUploadChange" />
+            <input ref="jsonFileInput" type="file" accept=".json,application/json" class="hidden" @change="handleJSONFileChange" />
+          </section>
+
+          <!-- Layers -->
+          <section>
+            <div class="flex items-center justify-between mb-3">
+              <h3 class="flex items-center gap-2 text-base font-bold text-gray-800 dark:text-gray-100">
+                <i class="text-sm text-gray-700 dark:text-gray-300 fas fa-layer-group"></i>
+                Layers
+              </h3>
+              <button @click="addLayer()" class="btn btn-dark btn-sm">
+                <i class="text-xs fas fa-plus"></i>
+                <span>Add</span>
+              </button>
+            </div>
+            <div class="space-y-2">
+              <div
+                v-for="layer in layers"
+                :key="layer.id"
+                class="flex items-center gap-2 px-3 py-2 bg-white dark:bg-gray-800 border rounded-lg transition-all"
+                :class="[layer.id === activeLayerId ? 'border-gray-800 ring-1 ring-gray-800 dark:border-gray-400 dark:ring-gray-400' : 'border-gray-200 dark:border-gray-700', !layer.visible ? 'opacity-50' : '']"
+              >
+                <button @click.stop="layer.visible = !layer.visible" class="btn btn-ghost btn-icon-sm rounded" :title="layer.visible ? 'Hide layer' : 'Show layer'">
+                  <i :class="layer.visible ? 'text-sm text-gray-800 dark:text-gray-200 fas fa-eye' : 'text-sm text-gray-400 dark:text-gray-500 fas fa-eye-slash'"></i>
+                </button>
+                <input
+                  v-if="editingLayerId === layer.id"
+                  type="text"
+                  v-model="editingLayerName"
+                  @blur="finishEditingLayer"
+                  @keyup.enter="finishEditingLayer"
+                  @keyup.esc="cancelEditingLayer"
+                  class="flex-1 px-2 py-1 text-sm border border-gray-800 dark:border-gray-400 dark:bg-gray-700 dark:text-gray-100 rounded outline-none focus:ring-2 focus:ring-gray-800 dark:focus:ring-gray-400"
+                  ref="layerNameInput"
+                  @click.stop
+                />
+                <button v-else @click="activeLayerId = layer.id" class="flex-1 px-2 py-1 text-sm font-medium text-left rounded transition-all cursor-pointer" :class="layer.id === activeLayerId ? 'text-gray-900 dark:text-gray-100' : 'text-gray-700 dark:text-gray-300'">
+                  {{ layer.name }}
+                  <span v-if="layer.sprites.length" class="ml-1 text-xs opacity-60">({{ layer.sprites.length }})</span>
+                </button>
+                <button v-if="editingLayerId !== layer.id" @click="startEditingLayer(layer.id, layer.name)" class="btn btn-ghost btn-icon-xs rounded" title="Rename">
+                  <i class="text-xs text-gray-600 dark:text-gray-400 fas fa-pen"></i>
+                </button>
+                <button @click="moveLayer(layer.id, 'up')" class="btn btn-ghost btn-icon-xs rounded" title="Move up">
+                  <i class="text-xs text-gray-600 dark:text-gray-400 fas fa-chevron-up"></i>
+                </button>
+                <button @click="moveLayer(layer.id, 'down')" class="btn btn-ghost btn-icon-xs rounded" title="Move down">
+                  <i class="text-xs text-gray-600 dark:text-gray-400 fas fa-chevron-down"></i>
+                </button>
+                <button v-if="layers.length > 1" @click="removeLayer(layer.id)" class="btn btn-danger btn-icon-xs rounded" title="Delete">
+                  <i class="text-xs fas fa-trash"></i>
+                </button>
+              </div>
+            </div>
+          </section>
+
+          <!-- Grid Settings -->
+          <section>
+            <h3 class="flex items-center gap-2 mb-3 text-base font-bold text-gray-800 dark:text-gray-100">
+              <i class="text-sm text-gray-700 dark:text-gray-300 fas fa-th"></i>
+              Grid
+            </h3>
+            <div class="space-y-3">
+              <div class="flex items-center justify-between px-3 py-2 bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg">
+                <label for="columns" class="text-sm font-medium text-gray-700 dark:text-gray-200">Columns</label>
+                <input id="columns" type="number" v-model.number="columns" min="1" max="10" class="input-field w-16" />
+              </div>
+
+              <div class="px-3 py-2 bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg">
+                <label class="flex items-center justify-between mb-2 cursor-pointer">
+                  <span class="text-sm font-medium text-gray-700 dark:text-gray-200">Manual size</span>
+                  <input type="checkbox" v-model="settingsStore.manualCellSizeEnabled" class="w-4 h-4 rounded" />
+                </label>
+                <div v-if="settingsStore.manualCellSizeEnabled" class="flex items-center gap-1.5 mt-2">
+                  <input type="number" v-model.number="settingsStore.manualCellWidth" min="1" max="2048" class="input-field w-full min-w-0" placeholder="W" />
+                  <span class="flex-shrink-0 text-gray-500 dark:text-gray-400">×</span>
+                  <input type="number" v-model.number="settingsStore.manualCellHeight" min="1" max="2048" class="input-field w-full min-w-0" placeholder="H" />
+                </div>
+                <div v-else class="mt-1 text-xs font-mono text-gray-500 dark:text-gray-400 break-words">{{ cellSize.width }} × {{ cellSize.height }}px</div>
+              </div>
+            </div>
+          </section>
+
+          <!-- Alignment -->
+          <section>
+            <h3 class="flex items-center gap-2 mb-3 text-base font-bold text-gray-800 dark:text-gray-100">
+              <i class="text-sm text-gray-700 dark:text-gray-300 fas fa-align-center"></i>
+              Align
+            </h3>
+            <div class="grid grid-cols-3 gap-2">
+              <button @click="alignSprites('left')" class="btn btn-secondary btn-sm" title="Left">
+                <i class="fas fa-arrow-left"></i>
+              </button>
+              <button @click="alignSprites('center')" class="btn btn-secondary btn-sm" title="Center">
+                <i class="fas fa-arrows-left-right"></i>
+              </button>
+              <button @click="alignSprites('right')" class="btn btn-secondary btn-sm" title="Right">
+                <i class="fas fa-arrow-right"></i>
+              </button>
+              <button @click="alignSprites('top')" class="btn btn-secondary btn-sm" title="Top">
+                <i class="fas fa-arrow-up"></i>
+              </button>
+              <button @click="alignSprites('middle')" class="btn btn-secondary btn-sm" title="Middle">
+                <i class="fas fa-arrows-up-down"></i>
+              </button>
+              <button @click="alignSprites('bottom')" class="btn btn-secondary btn-sm" title="Bottom">
+                <i class="fas fa-arrow-down"></i>
+              </button>
+            </div>
+          </section>
+
+          <!-- Export -->
+          <section>
+            <h3 class="flex items-center gap-2 mb-3 text-base font-bold text-gray-800 dark:text-gray-100">
+              <i class="text-sm text-gray-700 dark:text-gray-300 fas fa-download"></i>
+              Export
+            </h3>
+            <div class="grid grid-cols-2 gap-2">
+              <button @click="downloadSpritesheet" class="btn btn-dark btn-sm" data-rybbit-event="download-spritesheet">
+                <i class="fas fa-image"></i>
+                <span>PNG</span>
+              </button>
+              <button @click="exportSpritesheetJSON" class="btn btn-dark btn-sm" data-rybbit-event="export-json">
+                <i class="fas fa-file-code"></i>
+                <span>JSON</span>
+              </button>
+              <button @click="openGifFpsModal" class="btn btn-dark btn-sm" data-rybbit-event="download-gif">
+                <i class="fas fa-film"></i>
+                <span>GIF</span>
+              </button>
+              <button @click="downloadAsZip" class="btn btn-dark btn-sm" data-rybbit-event="download-zip">
+                <i class="fas fa-file-archive"></i>
+                <span>ZIP</span>
+              </button>
+            </div>
+          </section>
+        </div>
+      </div>
+
+      <!-- Right panel - Tabs -->
+      <div class="flex flex-col overflow-hidden">
+        <!-- Tab Navigation -->
+        <div class="bg-gray-50/50 dark:bg-gray-900/30 border-b border-gray-200 dark:border-gray-700">
+          <div class="flex gap-1 p-2">
+            <button
+              @click="activeTab = 'canvas'"
+              class="border-gray-600 border"
+              :class="['flex items-center gap-2 px-4 py-2 text-sm font-medium rounded-lg transition-all cursor-pointer', activeTab === 'canvas' ? 'bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100 shadow-sm' : 'text-gray-600 dark:text-gray-400 hover:bg-white/50 dark:hover:bg-gray-800/50']"
+            >
+              <i class="fas fa-th"></i>
+              <span>Canvas</span>
+            </button>
+            <button
+              @click="activeTab = 'preview'"
+              class="border-gray-600 border"
+              :class="['flex items-center gap-2 px-4 py-2 text-sm font-medium rounded-lg transition-all cursor-pointer', activeTab === 'preview' ? 'bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100 shadow-sm' : 'text-gray-600 dark:text-gray-400 hover:bg-white/50 dark:hover:bg-gray-800/50']"
+              data-rybbit-event="preview-animation"
+            >
+              <i class="fas fa-play"></i>
+              <span>Preview</span>
+            </button>
+          </div>
+        </div>
+
+        <!-- Tab Content -->
+        <div class="p-6 lg:flex-1 lg:overflow-auto">
+          <div v-if="activeTab === 'canvas'">
+            <sprite-canvas :layers="layers" :active-layer-id="activeLayerId" :columns="columns" @update-sprite="updateSpritePosition" @update-sprite-cell="updateSpriteCell" @remove-sprite="removeSprite" @replace-sprite="replaceSprite" @add-sprite="addSprite" />
+          </div>
+          <div v-if="activeTab === 'preview'">
+            <sprite-preview :layers="layers" :active-layer-id="activeLayerId" :columns="columns" @update-sprite="updateSpritePosition" @update-sprite-in-layer="updateSpriteInLayer" />
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <SpritesheetSplitter :is-open="isSpritesheetSplitterOpen" :image-url="spritesheetImageUrl" :image-file="spritesheetImageFile" @close="closeSpritesheetSplitter" @split="handleSplitSpritesheet" />
+    <GifFpsModal :is-open="isGifFpsModalOpen" @close="closeGifFpsModal" @confirm="downloadAsGif" :default-fps="10" />
+  </main>
+</template>
+
+<script setup lang="ts">
+  import { ref, toRef, computed } from 'vue';
+  import FileUploader from '@/components/FileUploader.vue';
+  import SpriteCanvas from '@/components/SpriteCanvas.vue';
+  import SpritePreview from '@/components/SpritePreview.vue';
+  import SpritesheetSplitter from '@/components/SpritesheetSplitter.vue';
+  import GifFpsModal from '@/components/GifFpsModal.vue';
+  import { useExportLayers } from '@/composables/useExportLayers';
+  import { useLayers } from '@/composables/useLayers';
+  import { getMaxDimensionsAcrossLayers } from '@/composables/useLayers';
+  import { useSettingsStore } from '@/stores/useSettingsStore';
+  import { calculateNegativeSpacing } from '@/composables/useNegativeSpacing';
+  import { useHomeViewSEO } from './HomeView.seo';
+  import type { SpriteFile } from '@/types/sprites';
+
+  // Initialize SEO
+  useHomeViewSEO();
+
+  const settingsStore = useSettingsStore();
+  const { layers, visibleLayers, activeLayer, activeLayerId, columns, updateSpritePosition, updateSpriteInLayer, updateSpriteCell, removeSprite, replaceSprite, addSprite, processImageFiles, alignSprites, addLayer, removeLayer, moveLayer } = useLayers();
+
+  const { downloadSpritesheet, exportSpritesheetJSON, importSpritesheetJSON, downloadAsGif, downloadAsZip } = useExportLayers(
+    layers,
+    columns,
+    toRef(settingsStore, 'negativeSpacingEnabled'),
+    activeLayerId,
+    toRef(settingsStore, 'backgroundColor'),
+    toRef(settingsStore, 'manualCellSizeEnabled'),
+    toRef(settingsStore, 'manualCellWidth'),
+    toRef(settingsStore, 'manualCellHeight')
+  );
+
+  const getCellSize = () => {
+    if (!visibleLayers.value.length) return { width: 0, height: 0 };
+
+    if (settingsStore.manualCellSizeEnabled) {
+      return { width: settingsStore.manualCellWidth, height: settingsStore.manualCellHeight };
+    }
+
+    const { maxWidth, maxHeight } = getMaxDimensionsAcrossLayers(visibleLayers.value);
+    const allSprites = visibleLayers.value.flatMap(l => l.sprites);
+    const negativeSpacing = calculateNegativeSpacing(allSprites, settingsStore.negativeSpacingEnabled);
+    return { width: maxWidth + negativeSpacing, height: maxHeight + negativeSpacing };
+  };
+
+  const cellSize = computed(getCellSize);
+  const activeTab = ref<'canvas' | 'preview'>('canvas');
+  const isSpritesheetSplitterOpen = ref(false);
+  const isGifFpsModalOpen = ref(false);
+  const uploadInput = ref<HTMLInputElement | null>(null);
+  const jsonFileInput = ref<HTMLInputElement | null>(null);
+  const spritesheetImageUrl = ref('');
+  const spritesheetImageFile = ref<File | null>(null);
+  const editingLayerId = ref<string | null>(null);
+  const editingLayerName = ref('');
+  const layerNameInput = ref<HTMLInputElement | null>(null);
+
+  const handleSpritesUpload = async (files: File[]) => {
+    const jsonFile = files.find(file => file.type === 'application/json' || file.name.endsWith('.json'));
+
+    if (jsonFile) {
+      await handleJSONImport(jsonFile);
+      return;
+    }
+
+    if (files.length === 1 && files[0].type.startsWith('image/')) {
+      const file = files[0];
+      const reader = new FileReader();
+      reader.onload = e => {
+        const url = e.target?.result as string;
+        const img = new Image();
+        img.onload = () => {
+          if (confirm('This looks like it might be a spritesheet. Would you like to split it into individual sprites?')) {
+            spritesheetImageUrl.value = url;
+            spritesheetImageFile.value = file;
+            isSpritesheetSplitterOpen.value = true;
+            return;
+          }
+
+          processImageFiles([file]);
+        };
+        img.onerror = () => {
+          console.error('Failed to load image:', file.name);
+        };
+        img.src = url;
+      };
+      reader.onerror = () => {
+        console.error('Failed to read image file:', file.name);
+      };
+      reader.readAsDataURL(file);
+      return;
+    }
+
+    processImageFiles(files);
+  };
+
+  const handleJSONImport = async (jsonFile: File) => {
+    try {
+      await importSpritesheetJSON(jsonFile);
+    } catch (error) {
+      console.error('Error importing JSON:', error);
+      alert('Failed to import JSON file. Please check the file format.');
+    }
+  };
+
+  const closeSpritesheetSplitter = () => {
+    isSpritesheetSplitterOpen.value = false;
+    if (spritesheetImageUrl.value && spritesheetImageUrl.value.startsWith('blob:')) {
+      try {
+        URL.revokeObjectURL(spritesheetImageUrl.value);
+      } catch {}
+    }
+    spritesheetImageUrl.value = '';
+    spritesheetImageFile.value = null;
+  };
+
+  const openGifFpsModal = () => {
+    if (!visibleLayers.value.some(l => l.sprites.length > 0)) {
+      alert('Please upload or import sprites before generating a GIF.');
+      return;
+    }
+    isGifFpsModalOpen.value = true;
+  };
+
+  const closeGifFpsModal = () => {
+    isGifFpsModalOpen.value = false;
+  };
+
+  const handleSplitSpritesheet = (spriteFiles: SpriteFile[]) => {
+    processImageFiles(spriteFiles.map(s => s.file));
+  };
+
+  const openJSONImportDialog = () => {
+    jsonFileInput.value?.click();
+  };
+
+  const handleJSONFileChange = async (event: Event) => {
+    const input = event.target as HTMLInputElement;
+    if (input.files && input.files.length > 0) {
+      await handleJSONImport(input.files[0]);
+      input.value = '';
+    }
+  };
+
+  const openFileDialog = () => {
+    uploadInput.value?.click();
+  };
+
+  const handleUploadChange = async (event: Event) => {
+    const input = event.target as HTMLInputElement;
+    if (input.files && input.files.length > 0) {
+      await handleSpritesUpload(Array.from(input.files));
+      input.value = '';
+    }
+  };
+
+  const startEditingLayer = (layerId: string, currentName: string) => {
+    editingLayerId.value = layerId;
+    editingLayerName.value = currentName;
+    // Focus the input on next tick
+    setTimeout(() => {
+      layerNameInput.value?.focus();
+      layerNameInput.value?.select();
+    }, 0);
+  };
+
+  const finishEditingLayer = () => {
+    if (editingLayerId.value && editingLayerName.value.trim()) {
+      const layer = layers.value.find(l => l.id === editingLayerId.value);
+      if (layer) {
+        layer.name = editingLayerName.value.trim();
+      }
+    }
+    editingLayerId.value = null;
+    editingLayerName.value = '';
+  };
+
+  const cancelEditingLayer = () => {
+    editingLayerId.value = null;
+    editingLayerName.value = '';
+  };
+</script>

src/views/PrivacyPolicy.vue

@@ -0,0 +1,56 @@
+<script setup lang="ts">
+  import { useSEO } from '../composables/useSEO';
+  import { useStructuredData } from '../composables/useStructuredData';
+
+  const { addBreadcrumbSchema } = useStructuredData();
+
+  // Set SEO synchronously
+  useSEO({
+    title: 'Privacy Policy - Your Data Protection',
+    description: 'Read our privacy policy. Spritesheet Generator is a client-side tool that does not collect personal data or upload your images to our servers.',
+    url: '/privacy-policy',
+    type: 'website',
+    keywords: 'privacy policy, data protection, client-side processing',
+  });
+
+  addBreadcrumbSchema([
+    { name: 'Home', url: '/' },
+    { name: 'Privacy Policy', url: '/privacy-policy' },
+  ]);
+</script>
+
+<template>
+  <div class="w-full">
+    <div class="bg-white/80 dark:bg-gray-900/80 backdrop-blur-md rounded-3xl shadow-2xl border border-gray-200/50 dark:border-gray-700/50 p-8 sm:p-12">
+      <h1 class="text-3xl sm:text-4xl font-extrabold text-gray-900 dark:text-white mb-6">Privacy Policy</h1>
+      <div class="space-y-6">
+        <p class="text-sm text-gray-500 dark:text-gray-400 mb-8">Last updated: November 26, 2025</p>
+
+        <div class="space-y-3">
+          <h3 class="text-xl font-bold text-gray-900 dark:text-white">1. Introduction</h3>
+          <p class="text-gray-700 dark:text-gray-300 leading-relaxed">We respect your privacy. This Spritesheet Generator is a client-side tool, meaning your images are processed directly in your browser and are not uploaded to our servers.</p>
+        </div>
+
+        <div class="space-y-3">
+          <h3 class="text-xl font-bold text-gray-900 dark:text-white">2. Data collection</h3>
+          <p class="text-gray-700 dark:text-gray-300 leading-relaxed">We do not collect any personal data or uploaded images. All processing happens locally on your device.</p>
+        </div>
+
+        <div class="space-y-3">
+          <h3 class="text-xl font-bold text-gray-900 dark:text-white">3. Local storage</h3>
+          <p class="text-gray-700 dark:text-gray-300 leading-relaxed">We use your browser's Local Storage to save your preferences (such as dark mode and grid settings) to improve your experience.</p>
+        </div>
+
+        <div class="space-y-3">
+          <h3 class="text-xl font-bold text-gray-900 dark:text-white">4. Third-Party services</h3>
+          <p class="text-gray-700 dark:text-gray-300 leading-relaxed">We do not use third-party services for analytics.</p>
+        </div>
+
+        <div class="space-y-3">
+          <h3 class="text-xl font-bold text-gray-900 dark:text-white">5. Contact</h3>
+          <p class="text-gray-700 dark:text-gray-300 leading-relaxed">If you have any questions about this Privacy Policy, please contact us via our Discord server.</p>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>

tailwind.config.js

@@ -68,5 +68,7 @@ export default {
       }),
     },
   },
-  plugins: [],
+  plugins: [
+    require('@tailwindcss/typography'),
+  ],
 }