of static method
Implementation
static FocusThemeData of(BuildContext context) {
assert(debugCheckHasFluentTheme(context));
final theme = context.dependOnInheritedWidgetOfExactType<FocusTheme>();
return FocusThemeData.fromTheme(FluentTheme.of(context))
.merge(FluentTheme.of(context).focusTheme.merge(theme?.data));
}