/theme-builder: Build or Improve Theme

Build a complete light + dark theme from a brand color, or improve an existing theme.

Flow

1. Determine brand color and style direction
2. Generate palette with uiux_generate_palette:
   • Brand: primary, primary-foreground
   • Neutral: 11-step scale from lightest to darkest
   • Semantic: success, error, warning, info (each with base, light, dark)
   • Surfaces: background, surface, elevated, overlay
   • Text: primary, secondary, muted, inverse
   • Borders: default, strong, muted
   • Interactive: focus ring, selection, hover overlay
3. Generate dark mode variant (proper dark mode, not inverted)
4. Output in project-appropriate format (CSS vars, Tailwind, shadcn theme)

Output