shape property

ShapeBorder? shape
final

If this is null, then the default value will be CommonAlertDialogThemeData.shape, if it is also null, then it will be:-

RoundedRectangleBorder(
 borderRadius: BorderRadius.all(
   Radius.circular(screenWidth * 0.03),
 ),
),

double screenWidth = min(MediaQuery.of(context).size.width, 600);

Implementation

final ShapeBorder? shape;