hoverThickness property Null safety

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

The thickness of the scrollbar when a hover state is active and showTrackOnHover is true.

If this property is null, then ScrollbarThemeData.thickness of ThemeData.scrollbarTheme is used to resolve a thickness. If that is also null, the default value is 12.0 pixels.

This is deprecated, use ScrollbarThemeData.thickness to resolve based on the current state instead.

Implementation

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