wheelSubheading property Null safety
Subheading widget for the HSV color wheel picker.
Typically a Text widget, e.g.
Text('Selected color and its material like shades').
The color wheel uses a separate subheading widget so that it may have another explanation, since its use case differs from the other subheading cases. If not provided, there is no subheading for the color wheel picker.
final Widget? wheelSubheading;