What do you think of doing F1-F4 and F9-F12 as novelties where the keycaps are still white, but with each F1, F2, etc. legend inside of a circle outlined in black and in a heavier font, like the numbers on the cars? You definitely need to keep a little bit of white and black in here, and I'd like to see it show up as something that looks more like the number badging in the Gulf Oil livery.