create method
Implementation
AFFundamentalThemeArea create() {
validate();
return AFFundamentalThemeArea(
themeLight: themeLight!,
themeDark: themeDark!,
values: this.values,
translationSet: translationSet,
supportedLocalesApp: supportedLocalesApp,
overrides: const <AFThemeID, AFFundamentalThemeValue>{},
optionsForType: optionsForType,
);
}