themeOf method
Implementation
SliderFieldTheme themeOf(BuildContext context) {
final theme = Theme.of(context);
final formTheme = FormTheme.of(context);
final fieldTheme = formTheme.sliderTheme;
final sliderTheme = fieldTheme.sliderTheme ?? theme.sliderTheme;
return SliderFieldTheme(sliderTheme: sliderTheme);
}