ColorRolesNotRawHex [rule] v0.1.0

Material 3 defines 30+ semantic color roles — primary, onPrimary, surface, onSurfaceVariant, error, outline, etc. — exposed in Compose as MaterialTheme.colorScheme.<role>. Components and screens reference roles. The role-to-hex mapping lives in the theme and changes between light/dark, dynamic-color (Material You), high-contrast, and per-app brand schemes. Hard-coding a hex value bypasses every one of those swaps and breaks the moment a user toggles dark mode or dynamic color.

Checks

• All Color(0xFF...) and Color.Red-style literals in app code are replaced with MaterialTheme.colorScheme.<role>.
• Backgrounds use surface, surfaceVariant, or surfaceContainer*; foreground content on top uses the matching onSurface* role.
• Tinted brand actions use primary for the action and onPrimary for content drawn on it; never invert this pair manually.
• Errors use error + onError; warnings/info derive from tertiary/secondary rather than ad-hoc orange/blue.
• Dynamic color (Material You) is enabled on Android 12+ via dynamicLightColorScheme / dynamicDarkColorScheme so user wallpaper colors flow through.

Label

Reference Material 3 color roles, never raw hex literals

ColorRolesNotRawHex [rule] v0.1.0

Material 3 defines 30+ semantic color roles — primary, onPrimary, surface, onSurfaceVariant, error, outline, etc. — exposed in Compose as MaterialTheme.colorScheme.<role>. Components and screens reference roles. The role-to-hex mapping lives in the theme and changes between light/dark, dynamic-color (Material You), high-contrast, and per-app brand schemes. Hard-coding a hex value bypasses every one of those swaps and breaks the moment a user toggles dark mode or dynamic color.

Checks

• All Color(0xFF...) and Color.Red-style literals in app code are replaced with MaterialTheme.colorScheme.<role>.
• Backgrounds use surface, surfaceVariant, or surfaceContainer*; foreground content on top uses the matching onSurface* role.
• Tinted brand actions use primary for the action and onPrimary for content drawn on it; never invert this pair manually.
• Errors use error + onError; warnings/info derive from tertiary/secondary rather than ad-hoc orange/blue.
• Dynamic color (Material You) is enabled on Android 12+ via dynamicLightColorScheme / dynamicDarkColorScheme so user wallpaper colors flow through.

Label

Reference Material 3 color roles, never raw hex literals

Label

Reference Material 3 color roles, never raw hex literals