collapsedShape property
final
The tile's border shape when the sublist is collapsed.
If this property is null, the ExpansionTileThemeData.collapsedShape is used. If that is also null, a Border with vertical sides default to Color Colors.transparent is used
See also:
- ExpansionTileTheme.of, which returns the nearest ExpansionTileTheme's ExpansionTileThemeData.
Implementation
final ShapeBorder? collapsedShape;