dialBackgroundColor property
final
The background color of the time picker dial when the entry mode is TimePickerEntryMode.dial or TimePickerEntryMode.dialOnly.
If this is null and ThemeData.useMaterial3 is true, the time picker dial background color defaults ColorScheme.surfaceVariant color.
If this is null and ThemeData.useMaterial3 is false, the time picker dial background color defaults to ColorScheme.onSurface color with an opacity of 0.08 when the overall theme's brightness is Brightness.light and ColorScheme.onSurface color with an opacity of 0.12 when the overall theme's brightness is Brightness.dark.
Implementation
final Color? dialBackgroundColor;