Design System Patterns Master design system architecture to create consistent, maintainable, and scalable UI foundations across web and mobile applications. When to Use This Skill - Creating design tokens for colors, typography, spacing, and shadows - Implementing light/dark theme switching with CSS custom properties - Building multi-brand theming systems - Architecting component libraries with consistent APIs - Establishing design-to-code workflows with Figma tokens - Creating semantic token hierarchies (primitive, semantic, component) - Setting up design system documentation and guidelines…