Comprehensive design token system providing the foundational styling architecture for all component skills, enabling brand customization, theme switching, RTL support, and consistent visual design.
Scanned 2/10/2026
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---
name: theming-components
description: Provides design token system and theming framework for consistent, customizable UI styling across all components. Covers complete token taxonomy (color, typography, spacing, shadows, borders, motion, z-index), theme switching (CSS custom properties, theme providers), RTL/i18n support (CSS logical properties), and accessibility (WCAG contrast, high contrast themes, reduced motion). This is the foundational styling layer referenced by ALL component skills. Use when theming components, implementing light/dark mode, creating brand styles, customizing visual design, ensuring design consistency, or supporting RTL languages.
---
# Design Tokens & Theming System
Comprehensive design token system providing the foundational styling architecture for all component skills, enabling brand customization, theme switching, RTL support, and consistent visual design.
## Overview
Design tokens are the **single source of truth** for all visual design decisions. This skill provides:
1. **Complete Token Taxonomy**: 7 core categories (color, typography, spacing, borders, shadows, motion, z-index)
2. **Theme Switching**: Light/dark mode, high-contrast, custom brand themes
3. **RTL/i18n Support**: CSS logical properties for automatic right-to-left language support
4. **Multi-Platform Export**: CSS variables, SCSS, iOS Swift, Android XML, JavaScript
5. **Component Integration**: Skill chaining architecture for consistent styling across all components
**Critical Architectural Principle:**
```
Component Skills (Behavior + Structure) → Use tokens for ALL visual styling
Design Tokens (Styling Variables) → Define colors, spacing, typography
Theme Files (Token Overrides) → Light, dark, brand-specific values
```
---
## Quick Start
### Using Tokens in Components
**Step 1: Reference tokens in your component:**
```css
.button {
background-color: var(--button-bg-primary);
color: var(--button-text-primary);
padding-inline: var(--button-padding-inline);
padding-block: var(--button-padding-block);
border-radius: var(--button-border-radius);
transition: var(--transition-fast);
}
```
**Step 2: Themes automatically apply:**
```html
<!-- Light theme -->
<html data-theme="light">
<button class="button">Primary Button</button>
</html>
<!-- Dark theme (same component, different appearance) -->
<html data-theme="dark">
<button class="button">Primary Button</button>
</html>
```
**No code changes needed** - theme switching is automatic!
### Basic Theme Switching
```javascript
function setTheme(themeName) {
document.documentElement.setAttribute('data-theme', themeName);
localStorage.setItem('theme', themeName);
}
function toggleTheme() {
const current = document.documentElement.getAttribute('data-theme');
setTheme(current === 'dark' ? 'light' : 'dark');
}
// Load saved theme on page load
setTheme(localStorage.getItem('theme') || 'light');
```
---
## Token Taxonomy (7 Core Categories)
### 1. Color Tokens
**3-tier hierarchy: Primitive → Semantic → Component**
```css
/* Primitive (9-shade scales) */
--color-blue-500: #3B82F6;
/* Semantic (purpose-based) */
--color-primary: var(--color-blue-500);
--color-success: var(--color-green-500);
--color-error: var(--color-red-500);
/* Component-specific */
--button-bg-primary: var(--color-primary);
```
**Complete color system:** See `references/color-system.md`
### 2. Spacing Tokens
**4px base scale:**
```css
--space-1: 4px; --space-2: 8px; --space-4: 16px;
--space-6: 24px; --space-8: 32px; --space-12: 48px;
/* Semantic */
--spacing-sm: var(--space-2); /* 8px */
--spacing-md: var(--space-4); /* 16px */
--spacing-lg: var(--space-6); /* 24px */
```
### 3. Typography Tokens
```css
--font-sans: 'Inter', -apple-system, sans-serif;
--font-mono: 'Fira Code', monospace;
--font-size-sm: 14px;
--font-size-base: 16px;
--font-size-lg: 18px;
--font-weight-normal: 400;
--font-weight-semibold: 600;
--font-weight-bold: 700;
```
### 4. Border & Radius Tokens
```css
--border-width-thin: 1px;
--border-width-medium: 2px;
--radius-sm: 4px;
--radius-md: 8px;
--radius-lg: 12px;
--radius-full: 9999px;
```
### 5. Shadow Tokens
```css
--shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.07);
--shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
--shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.12);
--shadow-focus-primary: 0 0 0 3px rgba(59, 130, 246, 0.3);
```
### 6. Motion Tokens
```css
--duration-fast: 150ms;
--duration-normal: 200ms;
--ease-out: cubic-bezier(0, 0, 0.2, 1);
--transition-fast: all var(--duration-fast) var(--ease-out);
```
**Reduced motion support:**
```css
@media (prefers-reduced-motion: reduce) {
:root { --transition-fast: none; }
}
```
### 7. Z-Index Tokens
```css
--z-dropdown: 1000;
--z-modal-backdrop: 1040;
--z-modal: 1050;
--z-tooltip: 1070;
```
---
## Theme Architecture
### Light/Dark Themes
```css
/* themes/light.css */
:root {
--color-primary: #3B82F6;
--color-background: #FFFFFF;
--color-text-primary: #1F2937;
}
/* themes/dark.css */
:root[data-theme="dark"] {
--color-primary: #60A5FA;
--color-background: #111827;
--color-text-primary: #F9FAFB;
}
```
### Custom Brand Theme
```css
:root[data-theme="my-brand"] {
--color-primary: #FF6B35;
--font-sans: 'Poppins', sans-serif;
--radius-md: 12px;
}
```
**Complete theme guide:** See `references/theme-switching.md`
---
## CSS Logical Properties (RTL Support)
**Use logical properties for automatic RTL language support:**
| Physical (Avoid) | Logical (Use) |
|------------------|---------------|
| `margin-left` | `margin-inline-start` |
| `padding-right` | `padding-inline-end` |
| `text-align: left` | `text-align: start` |
```css
/* Correct - auto-flips in RTL */
.button {
padding-inline: var(--button-padding-inline);
margin-inline-start: var(--spacing-sm);
}
```
**Complete RTL guide:** See `references/logical-properties.md`
---
## Component Integration
**All component skills use this naming convention:**
```
--{component}-{property}-{variant?}-{state?}
```
**Examples:**
```css
--button-bg-primary
--button-bg-primary-hover
--input-border-color-focus
--chart-color-1
```
**Components use tokens for ALL styling:**
```css
.button {
background-color: var(--button-bg-primary);
border-radius: var(--button-border-radius);
}
```
Theme changes automatically update all components.
**Complete integration guide:** See `references/component-integration.md`
---
## Accessibility
### WCAG 2.1 AA Compliance
- **Normal text**: 4.5:1 contrast minimum
- **Large text (18px+)**: 3:1 minimum
- **UI components**: 3:1 minimum
### High-Contrast Theme
```css
:root[data-theme="high-contrast"] {
--color-primary: #0000FF;
--color-text-primary: #000000;
/* 7:1 contrast (WCAG AAA) */
}
```
### Reduced Motion
```css
@media (prefers-reduced-motion: reduce) {
:root {
--duration-fast: 0ms;
--transition-fast: none;
}
}
```
**Complete accessibility guide:** See `references/accessibility-tokens.md`
---
## Platform Exports (Style Dictionary)
**Transform tokens to any platform:**
```
JSON Tokens → Style Dictionary → CSS Variables
→ iOS Swift
→ Android XML
→ JavaScript
```
```bash
npm run build-tokens
```
**Complete setup guide:** See `references/style-dictionary-setup.md`
---
## W3C Token Format
```json
{
"color": {
"primary": {
"$value": "#3B82F6",
"$type": "color"
}
}
}
```
---
## Scripts
```bash
# Generate color scale from base color
python scripts/generate_color_scale.py --base "#3B82F6"
# Validate token structure
python scripts/validate_tokens.py
# Check WCAG contrast ratios
python scripts/validate_contrast.py
# Build all platforms
npm run build-tokens
```
---
## References
**Core Systems:**
- `references/color-system.md` - Complete color scales and semantics
- `references/typography-system.md` - Type scales and fonts
- `references/spacing-system.md` - Spacing scale and rhythm
**Implementation:**
- `references/theme-switching.md` - Light/dark mode, custom themes
- `references/component-integration.md` - How skills use tokens
- `references/logical-properties.md` - RTL support patterns
**Tools & Accessibility:**
- `references/style-dictionary-setup.md` - Multi-platform build
- `references/accessibility-tokens.md` - WCAG compliance
---
## Key Takeaways
1. **Design tokens are the foundation** - All visual styling flows from tokens
2. **3-level hierarchy** - Primitive → Semantic → Component tokens
3. **7 core categories** - Color, spacing, typography, borders, shadows, motion, z-index
4. **Theme switching built-in** - Light, dark, high-contrast, custom brands
5. **RTL support automatic** - CSS logical properties enable right-to-left languages
6. **Accessibility first** - WCAG compliance, reduced motion, high contrast
7. **Referenced by all skills** - Every component skill uses design tokens
---
**Progressive disclosure:** This SKILL.md provides overview and quick start. Detailed documentation in `references/` directory.
**Skill chaining architecture:** See `SKILL_CHAINING_ARCHITECTURE.md`
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