toggleableActiveColor property Null safety

  1. @Deprecated('No longer used by the framework, please remove any reference to it. ' 'For more information, consult the migration guide at ' 'https://flutter.dev/docs/release/breaking-changes/toggleable-active-color#migration-guide. ' 'This feature was deprecated after v3.4.0-19.0.pre.')
Color toggleableActiveColor

The color used to highlight the active states of toggleable widgets like Switch, Radio, and Checkbox.

Implementation

@Deprecated(
  'No longer used by the framework, please remove any reference to it. '
  'For more information, consult the migration guide at '
  'https://flutter.dev/docs/release/breaking-changes/toggleable-active-color#migration-guide. '
  'This feature was deprecated after v3.4.0-19.0.pre.',
)
Color get toggleableActiveColor => _toggleableActiveColor!;