Given the standard console palette contains 16 colors, why limit this to
the first 8 colors, and not 0 to 15?
Good question. I think in some of my previous attempts there was a 0x7
mask involved somewhere and this is a carryover from that. But, after
having looked at this again, I don't see a reason for limiting to 7.
Could you please prepare the incremental patch raising the number of colors
possible to use?