showTrackOnHover property Null safety

bool? showTrackOnHover
Deprecated('Use ScrollbarThemeData.trackVisibility to resolve based on the current state instead. ' 'This feature was deprecated after v2.9.0-1.0.pre.')">@Deprecated('Use ScrollbarThemeData.trackVisibility to resolve based on the current state instead. ' 'This feature was deprecated after v2.9.0-1.0.pre.')final

Overrides the default value of Scrollbar.showTrackOnHover in all descendant Scrollbar widgets.

Implementation

@Deprecated(
  'Use ScrollbarThemeData.trackVisibility to resolve based on the current state instead. '
  'This feature was deprecated after v2.9.0-1.0.pre.',
)
final bool? showTrackOnHover;