Thanks Michael
I know about the colour pallates which I currently use .

I add colour a lot of ring and setting parts gold or platinum and it would speed me up to assign a key to colours I use all the time

I would probably use some of the F keys that I don't use
a script that cycles through some preset colours would be awesome.

I did recently find the add default styles arrow which is great on old CADs that I drew years ago bringing them up to date with current colours

cheers