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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Theme Creator</title>
<link rel="icon" type="image/svg+xml" href="data:image/svg+xml;base64,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" />
<meta name="theme-color" content="#0b0f17" />
<style>
:root {
--app-bg: #0b0f17;
--panel: #111827;
--panel-2: #172033;
--line: rgba(255,255,255,.10);
--muted: #94a3b8;
--text: #e5e7eb;
--text-soft: #cbd5e1;
--brand: #8b5cf6;
--brand-2: #06b6d4;
--danger: #ef4444;
--success: #10b981;
--shadow: 0 24px 80px rgba(0,0,0,.42);
--radius: 18px;
}
* { box-sizing: border-box; }
body {
margin: 0;
min-height: 100vh;
color: var(--text);
font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
background:
radial-gradient(circle at top left, rgba(139, 92, 246, .28), transparent 34rem),
radial-gradient(circle at top right, rgba(6, 182, 212, .16), transparent 32rem),
linear-gradient(135deg, #070a11, var(--app-bg));
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.shell { max-width: 1540px; margin: 0 auto; padding: 28px; }
.hero {
display: flex; align-items: center; justify-content: space-between; gap: 20px;
padding: 20px 22px; margin-bottom: 22px;
border: 1px solid var(--line); border-radius: 24px;
background: rgba(17, 24, 39, .72); backdrop-filter: blur(18px); box-shadow: var(--shadow);
}
.title-wrap { display: flex; align-items: center; gap: 16px; }
.logo {
width: 52px; height: 52px; border-radius: 16px;
background: conic-gradient(from 160deg, #8b5cf6, #06b6d4, #10b981, #f59e0b, #8b5cf6);
box-shadow: 0 0 28px rgba(139,92,246,.45);
position: relative;
}
.logo:after { content: ""; position: absolute; inset: 10px; border-radius: 11px; background: rgba(7,10,17,.75); }
h1 { margin: 0; font-size: clamp(24px, 3vw, 36px); letter-spacing: -.04em; }
.subtitle { color: var(--muted); margin-top: 4px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; align-items: end; }
.export-target { min-width: 240px; display: grid; gap: 5px; }
.export-target span { color: var(--muted); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .06em; }
.export-target select { height: 44px; }
.btn {
border: 1px solid var(--line); color: var(--text); background: rgba(255,255,255,.06);
border-radius: 13px; padding: 11px 14px; transition: .18s ease;
display: inline-flex; align-items: center; gap: 8px; font-weight: 700;
}
.btn:hover { transform: translateY(-1px); border-color: rgba(255,255,255,.22); background: rgba(255,255,255,.10); }
.btn.primary { background: linear-gradient(135deg, var(--brand), #6d5dfc); border-color: transparent; box-shadow: 0 10px 26px rgba(139,92,246,.28); }
.btn.danger { background: rgba(239,68,68,.14); color: #fecaca; }
.grid { display: grid; grid-template-columns: minmax(420px, 0.94fr) minmax(480px, 1.06fr); gap: 22px; align-items: start; }
.card { border: 1px solid var(--line); background: rgba(17, 24, 39, .76); backdrop-filter: blur(18px); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
@media (min-width: 1041px) {
.grid > .card:last-child {
position: sticky;
top: 22px;
max-height: calc(100vh - 44px);
overflow: auto;
}
}
.card-head { padding: 18px 20px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-head h2 { font-size: 18px; margin: 0; letter-spacing: -.02em; }
.editor-body { padding: 20px; }
.section { margin-bottom: 22px; }
.section-title { color: var(--text-soft); font-weight: 800; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 12px; }
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: grid; gap: 7px; }
label { color: #dbe4f0; font-size: 13px; font-weight: 700; }
.text-input, textarea, select {
width: 100%; color: var(--text); background: rgba(2, 6, 23, .52); border: 1px solid var(--line);
border-radius: 12px; padding: 11px 12px; outline: none; transition: .18s ease;
}
textarea { min-height: 80px; resize: vertical; grid-column: 1 / -1; }
.text-input:focus, textarea:focus, select:focus { border-color: rgba(139,92,246,.70); box-shadow: 0 0 0 4px rgba(139,92,246,.13); }
.checks { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; padding-top: 4px; }
.check { display: inline-flex; gap: 8px; align-items: center; color: var(--text-soft); font-weight: 700; }
.check input { width: 17px; height: 17px; accent-color: var(--brand); }
.tabs { display: grid; grid-template-columns: 1fr 1fr; padding: 6px; background: rgba(2,6,23,.46); border: 1px solid var(--line); border-radius: 16px; margin-bottom: 18px; }
.tab { border: 0; background: transparent; color: var(--muted); border-radius: 12px; padding: 11px; font-weight: 900; }
.tab.active { color: white; background: linear-gradient(135deg, rgba(139,92,246,.92), rgba(6,182,212,.44)); box-shadow: 0 8px 22px rgba(0,0,0,.24); }
.colors { display: grid; gap: 12px; }
.color-row {
display: grid; grid-template-columns: minmax(150px, .95fr) 64px minmax(150px, 1fr); gap: 10px; align-items: center;
padding: 10px; background: rgba(2,6,23,.30); border: 1px solid var(--line); border-radius: 16px;
}
.color-label small { display: block; color: var(--muted); font-weight: 600; margin-top: 2px; }
input[type="color"] {
width: 64px; height: 44px; padding: 0; border: 1px solid rgba(255,255,255,.2); border-radius: 12px; background: transparent; overflow: hidden;
}
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 10px; }
.color-text.invalid { border-color: var(--danger); box-shadow: 0 0 0 4px rgba(239,68,68,.13); }
details { border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.035); overflow: hidden; }
summary { list-style: none; padding: 14px 16px; cursor: pointer; font-weight: 900; color: #dbe4f0; display: flex; justify-content: space-between; }
summary::-webkit-details-marker { display: none; }
summary:after { content: "+"; color: var(--brand-2); font-size: 20px; line-height: 1; }
details[open] summary:after { content: "–"; }
details .colors { padding: 0 12px 12px; }
.preview-wrap { padding: 18px; }
.preview-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.seg { display: inline-flex; padding: 5px; border-radius: 999px; background: rgba(2,6,23,.50); border: 1px solid var(--line); }
.seg button { border: 0; color: var(--muted); background: transparent; border-radius: 999px; padding: 8px 12px; font-weight: 900; }
.seg button.active { color: white; background: rgba(255,255,255,.12); }
.mock-app {
height: 760px; min-height: 650px; border-radius: 22px; overflow: hidden;
border: 1px solid rgba(128,128,128,.25); display: grid; grid-template-columns: 210px 1fr;
color: var(--p-foreground); background: var(--p-background); transition: background .25s ease, color .25s ease;
}
.mock-side { background: var(--p-navigator); padding: 16px; border-right: 1px solid color-mix(in srgb, var(--p-foreground) 13%, transparent); transition: background .25s ease; }
.mock-brand { font-weight: 950; letter-spacing: -.03em; display:flex; align-items:center; gap: 9px; margin-bottom: 20px; }
.dot { width: 13px; height: 13px; border-radius: 999px; background: var(--p-accent); box-shadow: 0 0 0 6px color-mix(in srgb, var(--p-accent) 22%, transparent); }
.nav-item { padding: 10px 11px; border-radius: 12px; margin-bottom: 6px; color: color-mix(in srgb, var(--p-foreground) 80%, transparent); }
.nav-item.active { background: color-mix(in srgb, var(--p-accent) 18%, transparent); color: var(--p-foreground); font-weight: 850; }
.mock-main { display: grid; grid-template-rows: auto 1fr auto; min-width: 0; }
.mock-top { background: var(--p-popover-solid); padding: 14px 18px; display:flex; justify-content:space-between; align-items:center; border-bottom: 1px solid color-mix(in srgb, var(--p-foreground) 12%, transparent); transition: background .25s ease; }
.mock-title { font-weight: 950; letter-spacing: -.02em; }
.badges { display:flex; gap: 8px; align-items:center; flex-wrap: wrap; }
.badge { border-radius: 999px; padding: 6px 10px; font-size: 12px; font-weight: 950; }
.badge.info { background: color-mix(in srgb, var(--p-info) 18%, transparent); color: var(--p-info); }
.badge.success { background: color-mix(in srgb, var(--p-success) 16%, transparent); color: var(--p-success); }
.messages { padding: 22px; overflow: auto; background: linear-gradient(180deg, var(--p-background), color-mix(in srgb, var(--p-paper) 30%, var(--p-background))); }
.msg { max-width: 78%; padding: 14px 15px; border-radius: 18px; margin-bottom: 14px; line-height: 1.42; box-shadow: 0 12px 34px rgba(0,0,0,.08); }
.msg.ai { background: var(--p-paper); border: 1px solid color-mix(in srgb, var(--p-foreground) 10%, transparent); }
.msg.user { margin-left: auto; color: white; background: linear-gradient(135deg, var(--p-accent), color-mix(in srgb, var(--p-accent) 72%, #000)); }
.preview-link { color: var(--p-accent); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; font-weight: 850; }
.link-note { margin-top: 10px; padding: 9px 10px; border-radius: 12px; background: color-mix(in srgb, var(--p-accent) 11%, transparent); border: 1px solid color-mix(in srgb, var(--p-accent) 28%, transparent); font-size: 13px; }
.tool-card { margin-top: 14px; background: var(--p-popover); border: 1px solid color-mix(in srgb, var(--p-foreground) 12%, transparent); border-radius: 16px; padding: 14px; }
.tool-row { display:flex; justify-content:space-between; gap:12px; align-items:center; margin-top: 10px; }
.mock-btn { border: 0; border-radius: 12px; padding: 10px 12px; color: white; font-weight: 950; }
.mock-btn.accent { background: var(--p-accent); }
.mock-btn.destructive { background: var(--p-destructive); }
.code-card { margin-top: 14px; overflow: hidden; border-radius: 16px; border: 1px solid var(--code-border); background: var(--code-bg); color: var(--code-fg); transition: background .25s ease, color .25s ease, border-color .25s ease; }
.code-head { display:flex; justify-content:space-between; gap:12px; align-items:center; padding: 9px 12px; border-bottom: 1px solid var(--code-border); background: var(--code-head); color: var(--code-muted); font-size: 12px; font-weight: 900; }
.code-pre { margin: 0; padding: 13px 14px 15px; overflow: auto; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; font-size: 12.5px; line-height: 1.55; }
.tok.comment { color: var(--code-comment); font-style: italic; }
.tok.keyword { color: var(--code-keyword); font-weight: 800; }
.tok.string { color: var(--code-string); }
.tok.function { color: var(--code-function); }
.tok.number { color: var(--code-number); }
.tok.operator { color: var(--code-operator); }
.mock-bottom { padding: 14px 18px; background: var(--p-popover-solid); border-top: 1px solid color-mix(in srgb, var(--p-foreground) 12%, transparent); }
.inputbar { display:flex; align-items:center; gap:10px; background: var(--p-input); border: 1px solid color-mix(in srgb, var(--p-foreground) 10%, transparent); border-radius: 16px; padding: 12px; color: color-mix(in srgb, var(--p-foreground) 66%, transparent); }
.send { margin-left:auto; background: var(--p-accent); color:white; border:0; border-radius:10px; padding:7px 10px; font-weight:900; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.66); display: none; align-items: center; justify-content: center; padding: 20px; z-index: 20; }
.modal-backdrop.show { display: flex; }
.modal { width: min(760px, 100%); background: #101827; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); overflow: hidden; }
.modal textarea { min-height: 310px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.modal-body { padding: 18px; }
.modal-actions { display:flex; justify-content:space-between; gap: 10px; padding: 0 18px 18px; flex-wrap: wrap; }
.hint { color: var(--muted); font-size: 13px; }
.toast { position: fixed; right: 24px; bottom: 24px; background: #101827; color: var(--text); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; box-shadow: var(--shadow); opacity: 0; transform: translateY(10px); transition: .22s ease; z-index: 40; }
.toast.show { opacity: 1; transform: translateY(0); }
@media (max-width: 1040px) {
.grid { grid-template-columns: 1fr; }
.hero { align-items: flex-start; flex-direction: column; }
.actions { justify-content: flex-start; }
.mock-app { height: 760px; }
}
@media (max-width: 640px) {
.shell { padding: 14px; }
.meta-grid, .color-row { grid-template-columns: 1fr; }
input[type="color"] { width: 100%; }
.mock-app { grid-template-columns: 1fr; height: auto; min-height: 0; }
.mock-side { display:none; }
.messages { min-height: 420px; }
}
</style>
</head>
<body>
<div class="shell">
<header class="hero">
<div class="title-wrap">
<div class="logo" aria-hidden="true"></div>
<div>
<h1>Theme Creator</h1>
<div class="subtitle">Build a polished theme visually, preview it live, then export app, editor, CSS, or design-token files.</div>
</div>
</div>
<div class="actions">
<label class="export-target"><span>Export target</span><select id="exportTarget"><option value="craft">App Theme JSON</option><option value="vscode">VS Code Theme JSON</option><option value="css">CSS Variables</option><option value="tokens">Design Tokens JSON</option></select></label>
<button class="btn" id="importBtn">⇪ Import JSON</button>
<button class="btn primary" id="exportBtn">⇩ Export</button>
</div>
</header>
<main class="grid">
<section class="card">
<div class="card-head"><h2>Editor</h2><span class="hint">All values are saved in the exported JSON.</span></div>
<div class="editor-body">
<section class="section">
<p class="section-title">Metadata</p>
<div class="meta-grid">
<div class="field"><label for="name">Theme name</label><input class="text-input" id="name" value="My Theme"></div>
<div class="field"><label for="author">Author</label><input class="text-input" id="author" value="Author Name"></div>
<div class="field"><label for="license">License</label><input class="text-input" id="license" value="MIT"></div>
<div class="field"><label>Supported modes</label><div class="checks"><label class="check"><input type="checkbox" id="modeLight" checked> Light</label><label class="check"><input type="checkbox" id="modeDark" checked> Dark</label></div></div>
<div class="field" style="grid-column:1/-1"><label for="description">Description</label><textarea id="description">Short description</textarea></div>
<div class="field"><label for="shikiLight">Shiki theme — light</label><select id="shikiLight"></select></div>
<div class="field"><label for="shikiDark">Shiki theme — dark</label><select id="shikiDark"></select></div>
</div>
</section>
<div class="tabs" role="tablist">
<button class="tab active" id="lightTab" data-mode="light">Light Mode</button>
<button class="tab" id="darkTab" data-mode="dark">Dark Mode</button>
</div>
<section class="section">
<p class="section-title">Core Colors</p>
<div class="colors" id="coreColors"></div>
</section>
<details id="surfaceDetails">
<summary>Surface colors <span class="hint">cards, sidebars, fields, popovers</span></summary>
<div class="colors" id="surfaceColors"></div>
</details>
</div>
</section>
<section class="card">
<div class="card-head"><h2>Live Preview</h2><span class="hint">Switch mode without changing editor tab.</span></div>
<div class="preview-wrap">
<div class="preview-toolbar">
<div class="seg" aria-label="Preview mode">
<button id="previewLight" class="active">Light</button>
<button id="previewDark">Dark</button>
</div>
<span class="hint" id="previewModeHint">Using light palette</span>
</div>
<div class="mock-app" id="mockApp">
<aside class="mock-side">
<div class="mock-brand"><span class="dot"></span> Theme Studio</div>
<div class="nav-item active">Current Session</div>
<div class="nav-item">Sources</div>
<div class="nav-item">Automations</div>
<div class="nav-item">Theme Settings</div>
</aside>
<section class="mock-main">
<div class="mock-top">
<div><div class="mock-title">Theme preview session</div><div class="hint">Simulated app interface</div></div>
<div class="badges"><span class="badge info">Ask to Edit</span><span class="badge success">✓ Source OK</span></div>
</div>
<div class="messages">
<div class="msg ai"><strong>Assistant</strong><br>Here is how your colors feel in a real conversation card. Foreground, paper, and popover surfaces all work together here.
<div class="link-note">Links use the accent color: <a class="preview-link" href="#" onclick="return false;">Open generated theme file</a></div>
</div>
<div class="msg user">Looks great — can you execute the export?</div>
<div class="msg ai">
<strong>Tool result</strong><br>Your accent color is used for primary actions and selected navigation states.
<div class="tool-card">
<strong>Theme validation</strong>
<div class="tool-row"><span>JSON schema-ready</span><span class="badge success">✓ Passed</span></div>
<div class="tool-row"><button class="mock-btn accent">Execute Mode</button><button class="mock-btn destructive">Delete</button></div>
</div>
<div class="code-card" aria-label="Syntax highlighting preview">
<div class="code-head"><span>Syntax preview</span><span id="codeThemeName">github-light</span></div>
<pre class="code-pre"><code><span class="tok comment">// Shiki theme controls code block colors</span>
<span class="tok keyword">export</span> <span class="tok keyword">function</span> <span class="tok function">createTheme</span><span class="tok operator">(</span>mode<span class="tok operator">)</span> <span class="tok operator">{</span>
<span class="tok keyword">const</span> accent <span class="tok operator">=</span> <span class="tok string">"#8b5cf6"</span><span class="tok operator">;</span>
<span class="tok keyword">return</span> <span class="tok operator">{</span> mode, accent, steps<span class="tok operator">:</span> <span class="tok number">3</span> <span class="tok operator">}</span><span class="tok operator">;</span>
<span class="tok operator">}</span></code></pre>
</div>
</div>
</div>
<div class="mock-bottom"><div class="inputbar">Message assistant… <button class="send">Send</button></div></div>
</section>
</div>
</div>
</section>
</main>
</div>
<div class="modal-backdrop" id="modalBackdrop" role="dialog" aria-modal="true">
<div class="modal">
<div class="card-head"><h2>Import Theme JSON</h2><button class="btn" id="closeModal">Close</button></div>
<div class="modal-body">
<p class="hint">Paste JSON below or upload a .json file. Matching fields will populate the editor.</p>
<input type="file" id="fileInput" accept="application/json,.json" class="text-input" style="margin-bottom:12px">
<textarea id="jsonPaste" placeholder='{"name":"My Theme", ...}'></textarea>
</div>
<div class="modal-actions">
<button class="btn danger" id="clearPaste">Clear</button>
<button class="btn primary" id="applyImport">Apply Import</button>
</div>
</div>
</div>
<div class="toast" id="toast"></div>
<script>
const fields = {
core: [
['background', 'Background', 'App/page background'],
['foreground', 'Foreground', 'Main text color'],
['accent', 'Accent', 'Primary buttons and focus'],
['info', 'Info / Warning', 'Ask mode badges and notices'],
['success', 'Success', 'Checks and positive states'],
['destructive', 'Destructive / Error', 'Delete and error states']
],
surface: [
['paper', 'Paper (cards/messages)', 'Cards and message bubbles'],
['navigator', 'Navigator (sidebar)', 'Sidebar / navigation rail'],
['input', 'Input field', 'Prompts and text inputs'],
['popover', 'Popover', 'Menus and floating panels'],
['popoverSolid', 'Popover (solid)', 'Solid popover variant']
]
};
const shikiThemes = ['github-light','github-dark','dracula','one-dark-pro','nord','monokai','solarized-light','solarized-dark','night-owl','catppuccin-mocha','catppuccin-latte','material-theme','min-light','min-dark','vitesse-light','vitesse-dark','slack-dark','slack-ochin','rose-pine','rose-pine-moon','everforest-light','everforest-dark'];
// Lightweight approximations of popular Shiki themes for the visual preview.
// The exported JSON still uses the official Shiki theme names above.
const shikiPalettes = {
'github-light': { bg:'#ffffff', fg:'#24292f', muted:'#6e7781', comment:'#6e7781', keyword:'#cf222e', string:'#0a3069', function:'#8250df', number:'#0550ae', operator:'#57606a', border:'#d0d7de', head:'#f6f8fa' },
'github-dark': { bg:'#0d1117', fg:'#c9d1d9', muted:'#8b949e', comment:'#8b949e', keyword:'#ff7b72', string:'#a5d6ff', function:'#d2a8ff', number:'#79c0ff', operator:'#c9d1d9', border:'#30363d', head:'#161b22' },
'dracula': { bg:'#282a36', fg:'#f8f8f2', muted:'#6272a4', comment:'#6272a4', keyword:'#ff79c6', string:'#f1fa8c', function:'#50fa7b', number:'#bd93f9', operator:'#ff79c6', border:'#44475a', head:'#21222c' },
'one-dark-pro': { bg:'#282c34', fg:'#abb2bf', muted:'#5c6370', comment:'#5c6370', keyword:'#c678dd', string:'#98c379', function:'#61afef', number:'#d19a66', operator:'#56b6c2', border:'#3e4451', head:'#21252b' },
'nord': { bg:'#2e3440', fg:'#d8dee9', muted:'#81a1c1', comment:'#616e88', keyword:'#81a1c1', string:'#a3be8c', function:'#88c0d0', number:'#b48ead', operator:'#81a1c1', border:'#4c566a', head:'#242933' },
'monokai': { bg:'#272822', fg:'#f8f8f2', muted:'#75715e', comment:'#75715e', keyword:'#f92672', string:'#e6db74', function:'#a6e22e', number:'#ae81ff', operator:'#f92672', border:'#49483e', head:'#1f201b' },
'solarized-light': { bg:'#fdf6e3', fg:'#657b83', muted:'#93a1a1', comment:'#93a1a1', keyword:'#859900', string:'#2aa198', function:'#268bd2', number:'#d33682', operator:'#6c71c4', border:'#eee8d5', head:'#eee8d5' },
'solarized-dark': { bg:'#002b36', fg:'#839496', muted:'#586e75', comment:'#586e75', keyword:'#859900', string:'#2aa198', function:'#268bd2', number:'#d33682', operator:'#6c71c4', border:'#073642', head:'#073642' },
'night-owl': { bg:'#011627', fg:'#d6deeb', muted:'#637777', comment:'#637777', keyword:'#c792ea', string:'#ecc48d', function:'#82aaff', number:'#f78c6c', operator:'#7fdbca', border:'#1d3b53', head:'#0b2942' },
'catppuccin-mocha': { bg:'#1e1e2e', fg:'#cdd6f4', muted:'#7f849c', comment:'#7f849c', keyword:'#cba6f7', string:'#a6e3a1', function:'#89b4fa', number:'#fab387', operator:'#89dceb', border:'#313244', head:'#181825' },
'catppuccin-latte': { bg:'#eff1f5', fg:'#4c4f69', muted:'#8c8fa1', comment:'#8c8fa1', keyword:'#8839ef', string:'#40a02b', function:'#1e66f5', number:'#fe640b', operator:'#04a5e5', border:'#ccd0da', head:'#e6e9ef' },
'material-theme': { bg:'#263238', fg:'#eeffff', muted:'#546e7a', comment:'#546e7a', keyword:'#c792ea', string:'#c3e88d', function:'#82aaff', number:'#f78c6c', operator:'#89ddff', border:'#37474f', head:'#1e272c' },
'min-light': { bg:'#ffffff', fg:'#1f2937', muted:'#6b7280', comment:'#6b7280', keyword:'#7c3aed', string:'#047857', function:'#2563eb', number:'#d97706', operator:'#4b5563', border:'#e5e7eb', head:'#f9fafb' },
'min-dark': { bg:'#1f2937', fg:'#f9fafb', muted:'#9ca3af', comment:'#9ca3af', keyword:'#a78bfa', string:'#34d399', function:'#60a5fa', number:'#fbbf24', operator:'#e5e7eb', border:'#374151', head:'#111827' },
'vitesse-light': { bg:'#ffffff', fg:'#393a34', muted:'#a0ada0', comment:'#a0ada0', keyword:'#ab5959', string:'#2f855a', function:'#59873a', number:'#b07d48', operator:'#666666', border:'#e5e7eb', head:'#f8fafc' },
'vitesse-dark': { bg:'#121212', fg:'#dbd7caee', muted:'#758575dd', comment:'#758575dd', keyword:'#cb7676', string:'#4d9375', function:'#80a665', number:'#b8a965', operator:'#c99076', border:'#333333', head:'#1b1b1b' },
'slack-dark': { bg:'#222222', fg:'#d1d2d3', muted:'#868686', comment:'#868686', keyword:'#e01e5a', string:'#2eb67d', function:'#36c5f0', number:'#ecb22e', operator:'#e01e5a', border:'#3a3a3a', head:'#191919' },
'slack-ochin': { bg:'#ffffff', fg:'#1d1c1d', muted:'#616061', comment:'#616061', keyword:'#611f69', string:'#007a5a', function:'#1264a3', number:'#e8912d', operator:'#1d1c1d', border:'#dddddd', head:'#f8f8f8' },
'rose-pine': { bg:'#191724', fg:'#e0def4', muted:'#6e6a86', comment:'#6e6a86', keyword:'#eb6f92', string:'#f6c177', function:'#9ccfd8', number:'#c4a7e7', operator:'#ebbcba', border:'#26233a', head:'#1f1d2e' },
'rose-pine-moon': { bg:'#232136', fg:'#e0def4', muted:'#6e6a86', comment:'#6e6a86', keyword:'#eb6f92', string:'#f6c177', function:'#9ccfd8', number:'#c4a7e7', operator:'#ea9a97', border:'#393552', head:'#2a273f' },
'everforest-light': { bg:'#fdf6e3', fg:'#5c6a72', muted:'#a6b0a0', comment:'#a6b0a0', keyword:'#8da101', string:'#35a77c', function:'#3a94c5', number:'#f57d26', operator:'#df69ba', border:'#e9e0c9', head:'#f4f0d9' },
'everforest-dark': { bg:'#2d353b', fg:'#d3c6aa', muted:'#859289', comment:'#859289', keyword:'#a7c080', string:'#dbbc7f', function:'#7fbbb3', number:'#d699b6', operator:'#e67e80', border:'#475258', head:'#232a2e' }
};
const state = {
activeEditorMode: 'light',
previewMode: 'light',
meta: { name: 'My Theme', description: 'Short description', author: 'Author Name', license: 'MIT', supportedModes: ['light','dark'], shikiTheme: { light: 'github-light', dark: 'github-dark' } },
light: { background:'#ffffff', foreground:'#0f172a', accent:'#8b5cf6', info:'#f59e0b', success:'#10b981', destructive:'#ef4444', paper:'#f8fafc', navigator:'#f1f5f9', input:'#e2e8f0', popover:'#ffffff', popoverSolid:'#ffffff' },
dark: { background:'#000000', foreground:'#e2e2e2', accent:'#a78bfa', info:'#fbbf24', success:'#34d399', destructive:'#f87171', paper:'#0a0a0a', navigator:'#050505', input:'#111111', popover:'#0d0d0d', popoverSolid:'#0d0d0d' }
};
const $ = sel => document.querySelector(sel);
const coreColors = $('#coreColors');
const surfaceColors = $('#surfaceColors');
function isValidCssColor(value) {
if (!value || !value.trim()) return false;
const s = new Option().style;
s.color = '';
s.color = value.trim();
return s.color !== '';
}
function toHexIfPossible(value) {
const canvas = document.createElement('canvas');
canvas.width = canvas.height = 1;
const ctx = canvas.getContext('2d');
try {
ctx.fillStyle = '#000000';
ctx.fillStyle = value;
return ctx.fillStyle.startsWith('#') ? ctx.fillStyle : null;
} catch { return null; }
}
function slugify(str) {
return (str || 'theme').toLowerCase().trim().replace(/[^a-z0-9]+/g, '-').replace(/^-+|-+$/g, '') || 'theme';
}
function toast(message) {
const t = $('#toast');
t.textContent = message;
t.classList.add('show');
setTimeout(() => t.classList.remove('show'), 2400);
}
function renderSelects() {
for (const id of ['shikiLight','shikiDark']) {
const sel = $('#' + id);
sel.innerHTML = shikiThemes.map(t => `<option value="${t}">${t}</option>`).join('');
}
$('#shikiLight').value = state.meta.shikiTheme.light;
$('#shikiDark').value = state.meta.shikiTheme.dark;
}
function rowTemplate([key, label, help]) {
const mode = state.activeEditorMode;
const val = state[mode][key] || '';
const hex = toHexIfPossible(val) || '#000000';
return `<div class="color-row" data-key="${key}">
<div class="color-label"><label>${label}</label><small>${help}</small></div>
<input type="color" value="${hex}" aria-label="${label} color swatch">
<input class="text-input color-text" value="${escapeHtml(val)}" aria-label="${label} text value" placeholder="#ffffff, oklch(...), tomato">
</div>`;
}
function escapeHtml(s) { return String(s).replace(/[&<>'"]/g, c => ({'&':'&','<':'<','>':'>',"'":''','"':'"'}[c])); }
function renderColorRows() {
coreColors.innerHTML = fields.core.map(rowTemplate).join('');
surfaceColors.innerHTML = fields.surface.map(rowTemplate).join('');
bindColorRows();
}
function bindColorRows() {
document.querySelectorAll('.color-row').forEach(row => {
const key = row.dataset.key;
const color = row.querySelector('input[type=color]');
const text = row.querySelector('.color-text');
color.addEventListener('input', () => {
state[state.activeEditorMode][key] = color.value;
text.value = color.value;
text.classList.remove('invalid');
updatePreview();
});
text.addEventListener('input', () => {
const v = text.value.trim();
state[state.activeEditorMode][key] = v;
if (isValidCssColor(v)) {
text.classList.remove('invalid');
const hex = toHexIfPossible(v);
if (hex) color.value = hex;
} else {
text.classList.add('invalid');
}
updatePreview();
});
});
}
function updateMetaFromInputs() {
state.meta.name = $('#name').value;
state.meta.description = $('#description').value;
state.meta.author = $('#author').value;
state.meta.license = $('#license').value;
state.meta.supportedModes = [];
if ($('#modeLight').checked) state.meta.supportedModes.push('light');
if ($('#modeDark').checked) state.meta.supportedModes.push('dark');
state.meta.shikiTheme.light = $('#shikiLight').value;
state.meta.shikiTheme.dark = $('#shikiDark').value;
}
function hydrateInputs() {
$('#name').value = state.meta.name || '';
$('#description').value = state.meta.description || '';
$('#author').value = state.meta.author || '';
$('#license').value = state.meta.license || '';
$('#modeLight').checked = state.meta.supportedModes.includes('light');
$('#modeDark').checked = state.meta.supportedModes.includes('dark');
renderSelects();
renderColorRows();
updatePreview();
}
function setEditorMode(mode) {
state.activeEditorMode = mode;
$('#lightTab').classList.toggle('active', mode === 'light');
$('#darkTab').classList.toggle('active', mode === 'dark');
renderColorRows();
}
function setPreviewMode(mode) {
state.previewMode = mode;
$('#previewLight').classList.toggle('active', mode === 'light');
$('#previewDark').classList.toggle('active', mode === 'dark');
$('#previewModeHint').textContent = `Using ${mode} palette`;
updatePreview();
}
function updatePreview() {
const p = state[state.previewMode];
const el = $('#mockApp');
for (const key of [...fields.core, ...fields.surface].map(f => f[0])) {
el.style.setProperty('--p-' + key.replace(/[A-Z]/g, m => '-' + m.toLowerCase()), p[key]);
}
const themeName = state.meta.shikiTheme[state.previewMode] || state.meta.shikiTheme.light || 'github-light';
const code = shikiPalettes[themeName] || shikiPalettes['github-light'];
const codeVars = {
'--code-bg': code.bg,
'--code-fg': code.fg,
'--code-muted': code.muted,
'--code-comment': code.comment,
'--code-keyword': code.keyword,
'--code-string': code.string,
'--code-function': code.function,
'--code-number': code.number,
'--code-operator': code.operator,
'--code-border': code.border,
'--code-head': code.head
};
for (const [name, value] of Object.entries(codeVars)) el.style.setProperty(name, value);
const label = $('#codeThemeName');
if (label) label.textContent = themeName;
}
function buildThemeJson() {
updateMetaFromInputs();
const json = {
name: state.meta.name,
description: state.meta.description,
author: state.meta.author,
license: state.meta.license,
supportedModes: state.meta.supportedModes.length ? state.meta.supportedModes : ['light'],
shikiTheme: { light: state.meta.shikiTheme.light, dark: state.meta.shikiTheme.dark },
...state.light
};
if (json.supportedModes.includes('dark')) json.dark = { ...state.dark };
return json;
}
function buildVSCodeTheme() {
updateMetaFromInputs();
const mode = state.previewMode;
const p = state[mode];
const themeName = state.meta.shikiTheme[mode] || state.meta.shikiTheme.light || 'github-light';
const code = shikiPalettes[themeName] || shikiPalettes['github-light'];
return {
'$schema': 'vscode://schemas/color-theme',
name: `${state.meta.name || 'My Theme'} (${mode})`,
type: mode,
author: state.meta.author,
colors: {
'focusBorder': p.accent,
'foreground': p.foreground,
'descriptionForeground': code.muted,
'errorForeground': p.destructive,
'activityBar.background': p.navigator,
'activityBar.foreground': p.foreground,
'activityBarBadge.background': p.accent,
'activityBarBadge.foreground': '#ffffff',
'sideBar.background': p.navigator,
'sideBar.foreground': p.foreground,
'sideBarSectionHeader.background': p.paper,
'editor.background': p.background,
'editor.foreground': p.foreground,
'editorLineNumber.foreground': code.muted,
'editorCursor.foreground': p.accent,
'editor.selectionBackground': p.accent + '55',
'editorWidget.background': p.popover,
'panel.background': p.paper,
'panel.border': code.border,
'button.background': p.accent,
'button.foreground': '#ffffff',
'input.background': p.input,
'input.foreground': p.foreground,
'dropdown.background': p.popoverSolid,
'badge.background': p.info,
'badge.foreground': '#111111',
'terminal.ansiGreen': p.success,
'terminal.ansiRed': p.destructive,
'terminal.ansiYellow': p.info,
'terminal.ansiBlue': p.accent
},
tokenColors: [
{ scope: ['comment', 'punctuation.definition.comment'], settings: { foreground: code.comment, fontStyle: 'italic' } },
{ scope: ['keyword', 'storage', 'storage.type'], settings: { foreground: code.keyword } },
{ scope: ['string', 'constant.other.symbol'], settings: { foreground: code.string } },
{ scope: ['entity.name.function', 'support.function'], settings: { foreground: code.function } },
{ scope: ['constant.numeric', 'constant.language'], settings: { foreground: code.number } },
{ scope: ['keyword.operator', 'punctuation'], settings: { foreground: code.operator } }
]
};
}
function buildCssVariables() {
updateMetaFromInputs();
const keys = [...fields.core, ...fields.surface].map(f => f[0]);
const lines = [`/* ${state.meta.name || 'Theme'} */`, ':root {'];
keys.forEach(key => lines.push(` --${key.replace(/[A-Z]/g, m => '-' + m.toLowerCase())}: ${state.light[key]};`));
lines.push('}');
if (state.meta.supportedModes.includes('dark')) {
lines.push('', '[data-theme="dark"] {');
keys.forEach(key => lines.push(` --${key.replace(/[A-Z]/g, m => '-' + m.toLowerCase())}: ${state.dark[key]};`));
lines.push('}');
}
return lines.join('\n') + '\n';
}
function buildDesignTokens() {
updateMetaFromInputs();
const keys = [...fields.core, ...fields.surface].map(f => f[0]);
const makeTokens = palette => Object.fromEntries(keys.map(key => [key, { value: palette[key], type: 'color' }]));
const tokens = {
name: state.meta.name,
description: state.meta.description,
author: state.meta.author,
license: state.meta.license,
color: { light: makeTokens(state.light) },
shikiTheme: { light: state.meta.shikiTheme.light, dark: state.meta.shikiTheme.dark }
};
if (state.meta.supportedModes.includes('dark')) tokens.color.dark = makeTokens(state.dark);
return tokens;
}
function getExportPayload() {
const target = $('#exportTarget').value;
const name = slugify(state.meta.name || 'theme');
if (target === 'vscode') return { content: JSON.stringify(buildVSCodeTheme(), null, 2) + '\n', filename: `${name}-vscode-${state.previewMode}.json`, type: 'application/json', label: 'VS Code theme exported.' };
if (target === 'css') return { content: buildCssVariables(), filename: `${name}-variables.css`, type: 'text/css', label: 'CSS variables exported.' };
if (target === 'tokens') return { content: JSON.stringify(buildDesignTokens(), null, 2) + '\n', filename: `${name}-tokens.json`, type: 'application/json', label: 'Design tokens exported.' };
return { content: JSON.stringify(buildThemeJson(), null, 2) + '\n', filename: `${name}.json`, type: 'application/json', label: 'App theme exported.' };
}
function exportJson() {
const payload = getExportPayload();
const blob = new Blob([payload.content], { type: payload.type });
const a = document.createElement('a');
a.href = URL.createObjectURL(blob);
a.download = payload.filename;
document.body.appendChild(a);
a.click();
a.remove();
URL.revokeObjectURL(a.href);
toast(payload.label);
}
function applyThemeObject(obj) {
const allKeys = [...fields.core, ...fields.surface].map(f => f[0]);
state.meta.name = obj.name ?? state.meta.name;
state.meta.description = obj.description ?? state.meta.description;
state.meta.author = obj.author ?? state.meta.author;
state.meta.license = obj.license ?? state.meta.license;
if (Array.isArray(obj.supportedModes)) state.meta.supportedModes = obj.supportedModes.filter(m => ['light','dark'].includes(m));
if (obj.shikiTheme) {
state.meta.shikiTheme.light = obj.shikiTheme.light || state.meta.shikiTheme.light;
state.meta.shikiTheme.dark = obj.shikiTheme.dark || state.meta.shikiTheme.dark;
for (const theme of [state.meta.shikiTheme.light, state.meta.shikiTheme.dark]) if (!shikiThemes.includes(theme)) shikiThemes.push(theme);
}
for (const key of allKeys) if (obj[key] !== undefined) state.light[key] = obj[key];
if (obj.dark && typeof obj.dark === 'object') for (const key of allKeys) if (obj.dark[key] !== undefined) state.dark[key] = obj.dark[key];
hydrateInputs();
toast('Theme imported.');
}
function openModal() { $('#modalBackdrop').classList.add('show'); }
function closeModal() { $('#modalBackdrop').classList.remove('show'); }
document.querySelectorAll('#name,#description,#author,#license,#modeLight,#modeDark,#shikiLight,#shikiDark').forEach(el => {
el.addEventListener('input', () => { updateMetaFromInputs(); updatePreview(); });
el.addEventListener('change', () => { updateMetaFromInputs(); updatePreview(); });
});
$('#lightTab').addEventListener('click', () => setEditorMode('light'));
$('#darkTab').addEventListener('click', () => setEditorMode('dark'));
$('#previewLight').addEventListener('click', () => setPreviewMode('light'));
$('#previewDark').addEventListener('click', () => setPreviewMode('dark'));
$('#exportBtn').addEventListener('click', exportJson);
$('#importBtn').addEventListener('click', openModal);
$('#closeModal').addEventListener('click', closeModal);
$('#clearPaste').addEventListener('click', () => { $('#jsonPaste').value = ''; $('#fileInput').value = ''; });
$('#modalBackdrop').addEventListener('click', e => { if (e.target.id === 'modalBackdrop') closeModal(); });
$('#fileInput').addEventListener('change', async e => {
const file = e.target.files[0];
if (!file) return;
$('#jsonPaste').value = await file.text();
});
$('#applyImport').addEventListener('click', () => {
try {
const obj = JSON.parse($('#jsonPaste').value);
applyThemeObject(obj);
closeModal();
} catch (err) {
toast('Import failed: invalid JSON.');
}
});
hydrateInputs();
</script>
</body>
</html>