borderSide property
The border outline's color and weight.
If borderSide is BorderSide.none, which is the default, an outline is not drawn. Otherwise the outline is centered over the shape's boundary.
Implementation
final BorderSide borderSide;
The border outline's color and weight.
If borderSide is BorderSide.none, which is the default, an outline is not drawn. Otherwise the outline is centered over the shape's boundary.
final BorderSide borderSide;