BorderSideStrokeAlign
The relative position of the stroke on a BorderSide in an OutlinedBorder or Border.
BorderSideStrokeAlign enum has the following values:
CENTER
Provides padding with half width.
Has a value of 0.0.
INSIDE
Provides padding with full width.
Has a value of -1.0.
OUTSIDE
Provides zero padding, as stroke is drawn entirely outside.
Has a value of 1.0.