ThemeAddon<T> constructor

ThemeAddon<T>({ required List<WidgetbookTheme<T>> themes, WidgetbookTheme<T>? initialTheme, required ThemeBuilder<T> themeBuilder, })

Implementation

ThemeAddon({
  required this.themes,
  this.initialTheme,
  required this.themeBuilder,
})  : assert(
        themes.isNotEmpty,
        'themes cannot be empty',
      ),
      assert(
        initialTheme == null || themes.contains(initialTheme),
        'initialTheme must be in themes',
      ),
      super(
        name: 'Theme',
      );