flutter-design-system

Applies a design system in Flutter through the theme layer: ThemeData, ColorScheme, TextTheme, ThemeExtension design tokens, light and dark themes, shared themed widgets, accessibility checks and dashboard screens (stat strips, cards, adaptive layout). Use when theming an app, mapping a design team's tokens to Flutter, removing hard-coded colours or sizes, adding dark mode, checking contrast, tap targets and text scaling, or building a dashboard or data-heavy screen. Do not use for app structure (flutter-architecture) or for API integration.