Box.setRoundedCorners

void setRoundedCorners(int r1 = 10, int r2 = -1, int r3 = -1, int r4 = -1);

Sets the border style to use rounded corners.

Argument	Default	Description
r1	10	The radius of the top-left rounded corner in pixels.
r2	-1	The radius of the top-right rounded corner in pixels. -1 means it is the same as the radius of the top-left corner.
r3	-1	The radius of the bottom-right rounded corner in pixels. -1 means it is the same as the radius of the top-left corner.
r4	-1	The radius of the bottom-left rounded corner in pixels. -1 means it is the same as the radius of the top-left corner.

None