[Coco] Re: OS Survey, but missing the COCO os's

[PaulH96636 at aol.com]

In a message dated 8/12/2005 5:24:57 P.M. Eastern Daylight Time,  
gene.heskett at verizon.net writes:

>Heck, we shoulda mentioned Jake Commanders Chromkey.  That was  quite
>an enhancement to rsdos for coco1 & 2's
 
I recall Jake Commander, but don't have a clue as to what Chromkey  is/was.  
What does
it do?
 
-ph