ColaMD Themes

![DSH Skill](https://img.shields.io/badge/DSH%20Skill-supported-brightgreen?logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgaGVpZ2h0PSIxNiIgdmlld0JveD0iMCAwIDI0IDI0Ij48cGF0aCBmaWxsPSJjdXJyZW50Q29sb3IiIGQ9Ik0xMiAyQzYuNDggMiAyIDYuNDggMiAxMnM0LjQ4IDEwIDEwIDEwIDEwLTQuNDggMTAtMTBTMTcuNTIgMiAxMiAyem0tMSAxN2gxMm0tMTItMmgxMm0tMTItMkgxMg=="/>

Topics: dsh deepseek-harness colamd themes css markdown pdf html skill ai-agent

A theme development & export toolkit for ColaMD — the Agent-native Markdown editor. Extract visual formatting from web pages, Word documents, and PDFs, convert them into validated CSS theme files, and export Markdown to standalone HTML or PDF with any theme applied.

Features

Theme Extraction

URL — fetch a web page, parse its CSS rules (via css-tree), resolve inline styles with specificity calculation, and derive a coherent theme palette
DOCX — read Word document styles (H1–H6, tables, code blocks) via mammoth, map to theme variables
PDF — extract typography metadata from PDF text using multi-layer heuristic analysis
Auto‑detect — extract command automatically routes to the right extractor

HTML / PDF Export

export-html — render Markdown to a standalone HTML document with theme CSS embedded, Mermaid diagrams and KaTeX math fully rendered
export-pdf — render Markdown to PDF via Puppeteer (Chromium); theme colors are preserved with print-color-adjust: exact
export — batch export multiple files or entire directories to HTML or PDF
Powered by @bytechain.cn/colamd/renderer (2.x library build, requires @bytechain.cn/colamd@^2.7.8-rc.2) — the same CM6 editor as the app runs headless via Puppeteer. Theme CSS is consumed directly as :root declarations, buildExportHTML({ title }) serializes only contract live variables, and mermaid diagrams (Pele SVG) / KaTeX math stay fully rendered offline. Built-in theme names resolve their local contract CSS first. Generated themes target the 2.7.8-rc.2 contract, so they carry over unchanged.

Theme Management

set-theme — configure default export theme, register custom CSS themes, switch between built-in themes
Built-in themes: light, dark, elegant, newsprint
Custom themes: any .css file registered by name, referenced in exports
Using themes in the ColaMD 2.7.7+ app — import via Theme > Import Theme or drop the .css into ~/.colamd/themes/. The app ships its own built-in elegant; rename our elegant.css (e.g. elegant-brick.css) before importing to avoid a name clash.

Validation & Color Systems

Contrast Engine — WCAG 2.1 relative luminance & contrast ratio calculations
Paradigm Validator — 15+ design constraint rules (CR, HR, SL, NT, BD, MP, FP, FS, SH) with auto-fix suggestions
Color System Library — 15 predefined seed palettes across 5 families (Morandi, Macaron, Nordic, Vintage, Mint)
2.7.8-rc.2 CSS Contract Validator — flags dead selectors (#write, .ProseMirror, body.theme-custom), dead variables (--mermaid-*, --radius-*, --font-size-root…), pt units, and vertical padding on quote/code lines
2.7.8-rc.2 Verified — all 16 shipped themes audited against @bytechain.cn/[email protected] (contract unchanged through 2.7.8-rc.2) and smoke-tested on the 2.7.8-rc.2 export pipeline: zero .cm-md-* hook drift, all :root live variables and --pele-* overrides consumed, exports carry exactly the 27 contract live variables
Pele Diagram Colors — 9 --pele-* variables derived from --code-block-bg / --code-block-text / --link-color, replacing the 20 Mermaid variables

Security & Performance (v0.4.0+)

SSRF Protection — URL extractor validates against protocol whitelist and blocks private network access to prevent Server-Side Request Forgery attacks
Input Validation — CSS files validated for extension, size limit (1MB max), and content validity to prevent OOM attacks
Async I/O — Non-blocking file operations for improved responsiveness during batch exports
Template Caching — LRU-style cache (max 10 templates) with TTL expiration (30min) and mtime-based auto-invalidation for stable memory usage
Unified Error Handling — Structured error codes (CLIError + ErrorCode) across all commands for consistent debugging experience
Resource Cleanup — Explicit Puppeteer page cleanup prevents zombie processes and resource leaks

CSS Template Engine

Handlebars-powered template produces ColaMD 2.7.8-rc.2 contract CSS (≤300 lines):

Section	Content
1	Design Tokens — `:root` seed palette (11 vars), 14 semantic colors, fonts, metrics, 9 `--pele-*`
2	Editor DOM — `#editor .cm-content` + `.cm-md-*` (headings, inline, quote, code block, table, indent)
3	Exported HTML — `.colamd-document` color layer for semantic tags
4	`@media print` — print-color fidelity only (screen rules already apply)

MCP Server (Model Context Protocol)

Full MCP server for AI-native integration — connect ColaMD-themes to Chatbox, Cursor, Claude Desktop, Continue, and all MCP-compatible clients.

14 MCP tools covering theme extraction, export, validation, and management
Stdio transport — zero network config, direct process communication
Chinese theme name support — non-ASCII names handled via smart path resolution

Category	Tool	Description
Extraction	`extract_from_url`	Theme from web page
	`extract_from_docx`	Theme from Word doc
	`extract_from_pdf`	Theme from PDF
	`extract_auto`	Auto-detect source
Management	`list_themes`	List all themes
	`validate_theme`	Validate theme rules
	`check_fonts`	Check font availability
	`set_theme`	Register custom theme
Color	`list_color_systems`	15 built-in palettes
	`list_mermaid_presets`	3 Mermaid presets
Export	`export_html`	Markdown to HTML
	`export_pdf`	Markdown to PDF
	`export_batch`	Batch export

Multi-Agent Skill

Universal skill definitions for 6 AI coding agents, auto-generated from a single source:

Agent	Skill Path	Frontmatter
Claude Code	`.claude/skills/colamd-themes.skill.md`	`name`, `description`
OpenCode	`.opencode/skills/colamd-themes/SKILL.md`	`name`, `version`, `user-invocable`, `allowed-tools`, `hooks`
OpenClaw	`.openclaw/skills/colamd-themes/SKILL.md`	`id`, `name`, `version`, `icon`, `author`, `homepage`, `metadata.openclaw.os`
Hermes	`.hermes/skills/tools/colamd-themes/SKILL.md`	`name`, `version`, `author`, `license`, `metadata.hermes.tags`, `prerequisites`
Trae	`.trae/rules/colamd-themes.md`	Plain Markdown (no frontmatter)
DeepSeek Harness	`.dsh/skills/colamd-themes/SKILL.md`	`name`, `version`, `description`, `metadata.dsh.tags`, `prerequisites`

Architecture:

skills/colamd-themes/SKILL.md       ← Canonical source (single source of truth)
        │
        ▼
skills/build-skills.sh              ← Build script (bash)
        │
        ├──→ .claude/skills/colamd-themes.skill.md
        ├──→ .opencode/skills/colamd-themes/SKILL.md
        ├──→ .openclaw/skills/colamd-themes/SKILL.md
        ├──→ .hermes/skills/tools/colamd-themes/SKILL.md
        ├──→ .trae/rules/colamd-themes.md
        └──→ .dsh/skills/colamd-themes/SKILL.md

Regenerate all agent skills:

npm run build:skills            # generate all
bash skills/build-skills.sh     # same thing

# Or generate for a single agent:
bash skills/build-skills.sh claude
bash skills/build-skills.sh opencode
bash skills/build-skills.sh openclaw
bash skills/build-skills.sh hermes
bash skills/build-skills.sh trae
bash skills/build-skills.sh dsh

To customize: edit skills/colamd-themes/SKILL.md, then run npm run build:skills.

DSH Plugin (dsh-market)

The package is also a DSH (DeepSeek Harness) plugin bundle installable from dsh-market:

Plugin contract — package.json declares dsh.bundle.patch pointing to cordis.patch.yml, which inserts the colamd-themes Cordis entry into the profile's composition
Host entry — src/dsh-plugin.ts exports the Cordis protocol (name / inject: ["skills"] / apply) and registers the bundled skills/colamd-themes/SKILL.md with the Harness skills service via ctx.skills.registerProvider (same provider protocol as the bundled dsh-ppt plugin)
CLI bins — colamd-themes / cthemes ship with the package and become available to profile agents after install
Runtime compatibility — @deepseek-ai/dsh-skill is declared as an optional peer (^0.1.5-rc.1): the market checks it against the DSH runtime version, while standalone npm install is unaffected
Bundle contents — dist/ (CLI + host entry), themes/ (16 contract CSS themes), skills/ (bundled skill), cordis.patch.yml

Install from a DSH profile (once published to npm): add @bytechain.cn/colamd-themes through the dsh-market UI or dsh plugin --profile <name> add @bytechain.cn/colamd-themes.

Installation

git clone [email protected]:byteuser1977/ColaMD-themes.git
cd ColaMD-themes
npm install
npm run build

For development with hot‑reload:

npx tsx src/cli.ts <command>

Usage

The package provides two equivalent CLI commands:

colamd-themes — full command name
cthemes — short alias (recommended for frequent use)

Examples below use the short alias cthemes, but you can substitute colamd-themes interchangeably.

Extract a theme from a URL

cthemes from-url "https://example.com" --name my-theme

Extract from a Word document

cthemes from-docx report.docx --name corporate-theme

Extract from a PDF

cthemes from-pdf paper.pdf --name academic-theme

Auto‑detect source type

cthemes extract source.docx --name auto-theme

Validate a theme

cthemes validate themes/my-theme.css

List themes and color systems

cthemes list
cthemes color-systems

Export to HTML

# Single file with a built-in theme
cthemes export-html document.md -t elegant -o output.html

# With a custom theme
cthemes export-html document.md -t my-brand -o output.html

Export to PDF

# Single file
cthemes export-pdf document.md -t dark -o output.pdf

# With page format
cthemes export-pdf document.md -t elegant --format Letter -o output.pdf

Batch export

# Multiple files to HTML
cthemes export docs/*.md --format html -t light -d output/

# Directory of Markdown files to PDF
cthemes export docs/ --format pdf -t elegant -d output/

Theme management

# Set a built-in theme as default
cthemes set-theme elegant --default

# Register a custom theme from a CSS file
cthemes set-theme my-brand --css themes/swiss-design.css

# Register and set as default
cthemes set-theme my-brand --css themes/swiss-design.css --default

# Unregister a custom theme
cthemes set-theme my-brand --remove

All commands

Command	Description
`from-url <url>`	Extract theme from a web page URL
`from-docx <file>`	Extract theme from a .docx document
`from-pdf <file>`	Extract theme from a PDF document
`extract <source>`	Auto-detect source type and extract theme
`color-systems`	List 15 built-in color systems
`list`	List all generated themes
`validate <file>`	Validate a theme against the 2.7.8-rc.2 contract and paradigm rules
`set-theme <name>`	Set, register, or remove export themes
`export-html <input>`	Export Markdown → standalone HTML
`export-pdf <input>`	Export Markdown → PDF
`export <inputs...>`	Batch export multiple files or directories

Extract options

Flag	Description
`-n, --name`	Theme name (derived from source by default)
`-o, --output`	Output CSS file path
`-d, --themes-dir`	Themes directory (default: `themes/`)
`-c, --color-system`	Force a color system
`-A, --auto-match`	Auto-match a color system from the extracted palette

Export options

Flag	Description
`-t, --theme`	Theme name (built-in, custom, or CSS file path)
`-o, --output`	Output file path
`-d, --output-dir`	Output directory for batch export
`--format`	Output format for batch: `html` or `pdf` (default: `html`)
`--format`	PDF page size: `A4`, `Letter`, `A3` (default: `A4`)

How It Works

Theme Extraction Pipeline

Source (URL / .docx / .pdf)
    │
    ▼
┌─────────────────────┐
│  Extractor          │  Parse → raw ThemeStyle
└──────────┬──────────┘
           │
           ▼
┌─────────────────────┐
│  Color System       │  Match → 15 built-in palettes
│  Validators         │  WCAG contrast + paradigm + 2.7.8-rc.2 contract
└──────────┬──────────┘
           │
           ▼
┌─────────────────────┐
│  Template Engine    │  Handlebars → 2.7.8-rc.2 CSS (≤300 lines)
└──────────┬──────────┘
           │
           ▼
  themes/<name>.css

Export Pipeline

Markdown file
    │
    ▼
┌─────────────────────────────────────────────┐
│  Puppeteer (headless Chromium)              │
│  ┌───────────────────────────────────────┐  │
│  │  Local HTTP Server                    │  │
│  │  serves @bytechain.cn/colamd/renderer │  │
│  │  (same-origin, no CORS)              │  │
│  └──────────────┬────────────────────────┘  │
│                 │                            │
│  createColaMDEditor({ editable: false })     │
│  applyTheme(name, customCSS?)                │
│  setMarkdown(content)                        │
│  ensureAllPluginsRendered()  ← mermaid/KaTeX │
│                 │                            │
│  ┌──────────────┴──────────────┐             │
│  │  buildExportHTML({title}) → .html │       │
│  │  page.pdf()        → .pdf   │             │
│  └─────────────────────────────┘             │
└─────────────────────────────────────────────┘

Design Paradigm (2.7.8-rc.2 contract)

Full specification: templates/theme-paradigm.md.

Core Principles

Principle	Description
Variable-first	All colors, fonts, sizes, spacing as CSS custom properties. No raw values in selectors
Modular	Theme = variables + minimal selector tweaks. Built-in systems inherit automatically
Semantic	`--link-color` not `--color-blue`; `--font-body` not `--font-sans`
Derivable	Full theme from 11 seed tokens + 3 font stacks. AI agents modify only Section 1
Print-faithful	Export prints the current window, so screen rules apply as-is; `@media print` only adds `print-color-adjust`
No dead rules	CodeMirror 6 has no `#write`, `.ProseMirror`, `<h1>` or `<blockquote>` elements — only `.cm-md-*` line classes

Contrast Requirements (WCAG 2.1)

Rule ID	Level	Requirement	Threshold
CR-01	MUST	Body text vs background	≥ 7:1 (AAA)
CR-02	MUST	Secondary text vs background	≥ 4.5:1 (AA)
CR-03	MUST	Dimmed text vs background	≥ 3:1 (AA large)
CR-04	MUST	Accent color vs background	≥ 4.5:1 (AA)
CR-05	SHOULD	Inline code bg vs background	≥ 1.5:1

Project Structure

ColaMD-themes/
├── skills/
│   ├── colamd-themes/SKILL.md              # Canonical skill source
│   └── build-skills.sh                     # Generate agent-specific files
├── .claude/skills/colamd-themes.skill.md   # Claude Code skill
├── .opencode/skills/colamd-themes/SKILL.md # OpenCode skill
├── .openclaw/skills/colamd-themes/SKILL.md # OpenClaw skill
├── .hermes/skills/tools/colamd-themes/     # Hermes skill
├── .trae/rules/colamd-themes.md           # Trae rules
├── cordis.patch.yml                        # DSH plugin bundle patch (dsh-market)
├── package.json
├── tsconfig.json
├── themes/                                  # Generated CSS themes
├── src/
│   ├── cli.ts                               # CLI entry point
│   ├── index.ts                             # Public API exports
│   ├── models.ts                            # ThemeStyle / SeedPalette types
│   ├── generator.ts                         # Handlebars → CSS pipeline
│   ├── renderer.ts                          # Puppeteer HTML/PDF export engine
│   ├── export-cli.ts                        # Export CLI commands
│   ├── theme-store.ts                       # Theme config persistence (async API)
│   ├── dsh-plugin.ts                        # DSH host entry (Cordis skill provider)
│   ├── utils/
│   │   └── cli-utils.ts                     # Shared utilities & error handling
│   ├── color-utils.ts                       # Color manipulation utilities
│   ├── contrast.ts                          # WCAG 2.1 luminance & contrast
│   ├── validators.ts                        # Paradigm validation engine
│   ├── color-systems.ts                     # 15 predefined seed palettes
│   ├── docx-style-paradigm.ts              # Document style specification
│   ├── extractors/
│   │   ├── base.ts                          # Extractor interface
│   │   ├── url-extractor.ts                 # URL → ThemeStyle
│   │   ├── docx-extractor.ts                # DOCX → ThemeStyle
│   │   └── pdf-extractor.ts                 # PDF → ThemeStyle
│   └── templates/
│       ├── template.css                     # Paradigm companion CSS
│       ├── theme-paradigm.md               # v4.0 design specification (2.7.8-rc.2 contract)
│       └── theme-template.hbs              # Handlebars CSS template
└── tests/

Tech Stack

Component	Library	Purpose
Runtime	Node.js + TypeScript	ESM modules, strict typing
CLI framework	Commander.js	Argument parsing, subcommands
CSS templating	Handlebars	2.7.8-rc.2 contract CSS generation
HTML parsing	Cheerio	DOM traversal for URL extraction
CSS parsing	css-tree	CSS rule AST parsing
DOCX parsing	Mammoth	Word → HTML conversion
PDF parsing	pdf-parse	PDF text extraction
HTTP client	Axios	Web page fetching
Browser engine	Puppeteer	Headless Chromium for HTML/PDF export
Editor engine	@bytechain.cn/colamd	CM6-based Markdown renderer (2.7.8-rc.2 contract)
Terminal output	Chalk + Ora	Colored text + spinners

License

MIT

Install

Source

Tags

Creators

Readme