collapsedBackgroundColor property
final
When not null, defines the background color of tile when the sublist is collapsed.
If this property is null then ExpansionTileThemeData.collapsedBackgroundColor is used. If that is also null then Colors.transparent is used.
See also:
- ExpansionTileTheme.of, which returns the nearest ExpansionTileTheme's ExpansionTileThemeData.
Implementation
final Color? collapsedBackgroundColor;