GlassTheme class

Provides glass theme configuration to descendant widgets.

This InheritedWidget allows glass widgets to access centralized theme settings without passing them explicitly through the widget tree.

Usage

Wrap your app (or a section of it) with GlassTheme:

MaterialApp(
  builder: (context, child) => GlassTheme(
    data: GlassThemeData(
      light: GlassThemeVariant(
        settings: LiquidGlassSettings(thickness: 30),
        quality: GlassQuality.standard,
      ),
      dark: GlassThemeVariant(
        settings: LiquidGlassSettings(thickness: 40),
        quality: GlassQuality.standard,
      ),
    ),
    child: child!,
  ),
)

Access theme in widgets:

final theme = GlassThemeData.of(context);
final settings = theme.settingsFor(context); // Auto light/dark

Theme Inheritance

Widgets automatically inherit theme settings from the nearest GlassTheme ancestor. Individual widgets can override theme values by explicitly passing settings, quality, or glowColor parameters.

Light/Dark Mode

The theme automatically switches between light and dark variants using a four-level priority cascade (highest first):

1. GlassThemeData.brightness — explicit override on this theme.
2. Cupertino theme brightness — explicit pin in CupertinoThemeData.
3. Material ThemeMode — honours ThemeMode.light / ThemeMode.dark.
4. MediaQuery.platformBrightnessOf — device/OS system setting.

Use GlassTheme.brightnessOf to resolve brightness inside glass widgets. Never read MediaQuery.platformBrightnessOf or CupertinoTheme.brightnessOf directly in glass widget code — those bypass the cascade.