Create custom themes for CZero Engine desktop App with light/dark mode support, and ofcourse, comes with its own CLI.

# 1. Fork/Clone this repository
git clone https://github.com/yourusername/theme-template.git my-theme
cd my-theme

# 2. Install dependencies
npm install

# 3. Run the interactive theme builder
npm run create

# 4. Validate your theme
npm run validate

# 5. Install into CZero (Permanent!)
# Open CZero Engine → Settings → General → "Import Theme"
# Select your theme.json file - it's permanently installed!

# 1-2. Same as above
# 3. Edit theme.json manually
# 4-5. Same as above

my-theme/
├── theme.json          # Main theme (complete v2.0 structure)
├── package.json        # Package metadata  
├── README.md          # This documentation
├── scripts/           # Validation & creation tools
│   ├── validate.js    # Strict v2.0 validation
│   └── create-theme.js # Interactive theme builder
└── themes/           # 6 professional example themes
    ├── cyberpunk-neon/     # High-contrast neon theme
    ├── dark-forest/        # Nature-inspired theme  
    ├── minimal-light/      # Clean, professional theme
    ├── monochrome-modern/  # Black & white theme
    ├── ocean-depths/       # Deep blue oceanic theme
    └── retro-terminal/     # Classic terminal theme

Run npm run create for guided theme creation:

🎨 Color Presets: Cyberpunk, Ocean, Forest, Sunset, Purple Dream, Monochrome, Rose Gold, Custom

✨ Visual Styles:

• Modern: Clean, minimalist with subtle shadows
• Neon: Vibrant with glowing effects
• Glass: Transparent with blur effects
• Flat: No shadows, solid colors
• Gradient: Rich gradients and transitions

⚡ Loading Animations: Pulse, Spinner, Dots, Fractal, Glitch, Wave

🌓 Auto-Generation: Creates matching light and dark variants automatically

Your theme includes both top-level properties (engine compatibility) and variants (v2.0 compliance):

{
  "name": "my-theme",
  "displayName": "My Theme", 
  "version": "2.0.0",
  "description": "Beautiful custom theme",
  "author": "Your Name",
  "loadingAnimation": "pulse",
  
  // TOP-LEVEL PROPERTIES (Engine Compatibility)
  "colors": { /* complete color system */ },
  "typography": { /* font definitions */ },
  "spacing": { /* spacing scale */ },
  "shadows": { /* shadow system */ },
  "animations": { /* timing & easing */ },
  "borderRadius": { /* corner system */ },
  "effects": { /* special effects */ },
  
  // VARIANTS (v2.0 Compliance) 
  "variants": {
    "light": { /* complete light mode */ },
    "dark": { /* complete dark mode */ }
  }
}

"brand": {
  "primary": "#00d4ff",    // Main brand color
  "secondary": "#ff00ff",   // Secondary accent  
  "tertiary": "#00ff88",    // Additional accent
  "accent": "#ffd700"       // Highlight color
}

"button": {
  "primary": { "background": "#00d4ff", "text": "#000", "hover": "#00b8e6", "active": "#009cc7" },
  "secondary": { "background": "transparent", "text": "#00d4ff", "border": "#00d4ff", "hover": "rgba(0,212,255,0.1)" },
  "ghost": { "background": "transparent", "text": "#fff", "hover": "rgba(255,255,255,0.1)" }
},
"input": {
  "background": "rgba(0,0,0,0.8)", "border": "rgba(255,255,255,0.1)", 
  "borderHover": "rgba(255,255,255,0.2)", "borderFocus": "#00d4ff",
  "text": "#fff", "placeholder": "#666"
},
"card": {
  "background": "#0d1220", "border": "rgba(255,255,255,0.05)",
  "hover": { "background": "#141b3c", "border": "rgba(255,255,255,0.1)" }
}

"effects": {
  "glass": { "background": "rgba(255,255,255,0.1)", "backdropFilter": "blur(10px)", "border": "1px solid rgba(255,255,255,0.2)" },
  "neonText": { "color": "#00d4ff", "textShadow": "0 0 10px #00d4ff, 0 0 20px #00d4ff" },
  "holographic": { "background": "linear-gradient(135deg, #ff0080, #ff8c00, #40e0d0)", "animation": "holo 3s ease infinite" }
}

"shadows": {
  "xs": "0 1px 2px rgba(0,0,0,0.05)", "sm": "0 2px 4px rgba(0,0,0,0.1)",
  "md": "0 4px 8px rgba(0,0,0,0.15)", "lg": "0 8px 16px rgba(0,0,0,0.2)",
  "glow": "0 0 20px rgba(0,212,255,0.5)", "none": "none"
}

npm run validate  # Validates all themes
npm run validate theme.json  # Validates specific theme

What's Validated:

• ✅ Complete top-level structure (engine compatibility)
• ✅ Both light and dark variants (v2.0 compliance)
• ✅ All required color properties exist
• ✅ Component-specific colors (button, input, card)
• ✅ Valid color formats (hex, rgb, rgba, gradients)
• ✅ Loading animation enums
• ✅ Complete typography, spacing, shadows

1. Open CZero Engine → Settings → General → Appearance
2. Click "Import Theme"
3. Select your theme.json file
4. ✅ Theme permanently installed to app directory!

1. Click "Open Themes Folder" in Settings
2. Copy theme.json to the themes folder (app directory)
3. Click "Refresh" or restart app
4. ✅ Theme appears in selector!

Installation Path:

• Windows: %APPDATA%\czero-overlay\themes\
• macOS: ~/Library/Application Support/czero-overlay/themes/

• 🗑️ Delete Custom Themes: Delete button on theme cards (built-ins protected)
• 🔄 Manual Refresh: Refresh button picks up manually added themes
• 📤 Export Themes: Export any theme as shareable JSON
• 🎨 Theme Previews: Visual previews with color swatches
• 🌓 Mode Switching: Automatic light/dark variant switching

• Cyberpunk Neon: High-contrast neon with vibrant magenta/cyan colors
• Dark Forest: Nature-inspired with earthy greens and natural browns
• Minimal Light: Clean, professional with subtle accents
• Monochrome Modern: Ultra-modern black/white with sharp contrasts
• Ocean Depths: Deep oceanic blues with bioluminescent gradients
• Retro Terminal: Classic green phosphor terminal with VT323 font

1. Use the Interactive Builder - It generates perfect v2.0 structure
2. Test Both Modes - Always test light and dark variants thoroughly
3. Follow Accessibility - Ensure WCAG AA compliance (4.5:1 contrast)
4. Validate Before Sharing - Use npm run validate to ensure quality
5. Component Colors Matter - Don't skip button/input/card color definitions
6. Effects in Moderation - Enhance, don't distract

1. Create your theme using this template
2. Test thoroughly in CZero Overlay
3. Take screenshots in both light/dark modes
4. Share JSON files with the community
5. Contribute to the theme repository

• Discord Community
• GitHub Issues
• Example Themes

MIT - Create and share themes freely!