4 structural design design system

[winter-love-dev]

Design System

Overview

• Add design system module
• Structural design system as source code

This module provides the design system foundation for the LanguageStudy application, implementing a scalable and maintainable design token system.
It establishes a consistent visual language across the app through systematically organized design tokens and reusable components.

Responsibilities

• Define design tokens (colors, typography, spacing, etc.) as code following industry best practices
• Compose and maintain app themes with support for light and dark modes
• Implement and maintain UI components built on top of design tokens
• Provide foundation utilities for common design system needs

Module Structure

design-system/
├── tokens/              # Design token definitions (primitive & component values)
│   ├── ColorToken.kt
│   ├── TypographyToken.kt
│   └── IconToken.kt ...
│
├── theme/               # Theme aggregation (composing tokens into themes)
│   ├── Theme.kt
│   ├── Colors.kt
│   ├── Typography.kt
│   └── Icon.kt ...
│
├── foundation/           # Foundation utilities
│   └── ModifierExtensions, Ripple 
│
└── component/           # UI components
    ├── Button.kt
    └── TextField.kt

Package Descriptions

• tokens: Raw design token values (colors, typography scales, spacing units)
• theme: Aggregated theme objects accessible via WinterTheme
• foundation: Core utilities and helpers for the design system
• component: Reusable UI components built with design tokens