Flutter Design System

Flutter Design System Enforcement

Priority: P0 (CRITICAL)

Zero tolerance for hardcoded design values.

Guidelines

• Colors: Use tokens (VColors.*, AppColors.*), never Color(0xFF...) or Colors.red.
• Spacing: Use tokens (VSpacing.*), never magic numbers like 16 or 24.
• Typography: Use tokens (VTypography.*, textTheme.*), never inline TextStyle.
• Borders: Use tokens (VBorders.*), never raw BorderRadius.
• Components: Use DLS widgets (VButton) over raw Material widgets (ElevatedButton) if available.

Detailed Examples

Anti-Patterns

• No Hex Colors: Color(0xFF...) is strictly forbidden.
• No Color Enums: Colors.blue is forbidden in UI code.
• No Magic Spacing: SizedBox(height: 10) is forbidden.
• No Inline Styles: TextStyle(fontSize: 14) is forbidden.
• No Raw Widgets: Don't use ElevatedButton when VButton exists.

Related Topics

mobile-ux-core | flutter/widgets | idiomatic-flutter

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