_StrokeBWPoint
_StrokeBWPoint(into, rt, 90.0);
_StrokeBWPoint(into, rb, 180.0);
_StrokeBWPoint(into, lb, 270.0);
_StrokeBWPoint(into, lt, 0.0);
void _StrokeBWPoint(BView* into,
_StrokeBWPoint(into, lt, rotation);
_StrokeBWPoint(into, rt, rotation + 90.0);
_StrokeBWPoint(into, rb, rotation + 180.0);
_StrokeBWPoint(into, lb, rotation + 270.0);
void _StrokeBWPoint(BView* into,