[Coco] border colours

[Robert Gault]

mike delyea wrote:
> Anybody know if you can change the border on the 40/80 text screens to 
> match
> the background colour?  I seem to remember that you could but its been so
> long since I had a coco I can't really recall.
> 
> -- 

The Coco3 border color is controlled at $FF9A
bit #	function
7	-
6	-
5	ms bit red
4	ms bit green
3	ms bit blue
2	ls bit red
1	ls bit green
0	ls bit blue