Any way to make the border of the slideable more round? about flutter_slidable HOT 3 CLOSED

class SlidableBehindDelegate extends SlidableStackDelegate {
  const SlidableBehindDelegate({
    double fastThreshold,
  }) : super(
          fastThreshold: fastThreshold,
        );

  @override
  Widget buildStackActions(BuildContext context, SlidableDelegateContext ctx) {
    return new Positioned.fill(
      child: new LayoutBuilder(builder: (context, constraints) {
        return new Stack(
          children: <Widget>[
            ctx.createPositioned(
              position: 0.0,
              extent:
                  ctx.getMaxExtent(constraints) * ctx.state.totalActionsExtent + 10.0, // TWEAK THIS TO FIND THE BEST OFFSET FOR YOUR UI (Add double value)
              child: new Flex(
                direction: ctx.state.widget.direction,
                children: ctx
                    .buildActions(context)
                    .map((a) => Expanded(child: a))
                    .toList(),
              ),
            ),
          ],
        );
      }),
    );
  }
}