fromKey method
Converts a string key to a ThemeMode.
Implementation
ThemeMode fromKey(String key) =>
_themeConfigs.entries
.firstWhere(
(entry) => entry.value.key == key,
orElse:
() => const MapEntry(
ThemeMode.system,
_ThemeModeConfig(
key: 'system',
label: 'System Mode',
icon: Icons.brightness_6,
),
),
)
.key;