I pretty much GUARANTEE that there are no combos out there. For the price of those gauges, no one will gamble with a color combo, buy multiple colors, and then not like the outcome. Although I may be wrong, I doubt Tom would exchange "used" circuit boards because the owner doesn't like the colors so I'm sure anyone who owns these has one straight color across the board.
I asked Tom to join this thread. Maybe he has some pictures of what you are looking for.
[This message has been edited by IMSA GT (edited 01-07-2018).]