I'm going to be building some MAME cabs from some older machines.
I'm planning to do the 8-button layout to allow XBox 360 control-type layout.
As some games only support less than 8, I'd like to have the supported buttons light up for the game being played.
THe buttons that aren't used for that games would be unlit.
I would also like to flash the buttons a different color when they're pressed during the game.
For example, GAME1: the A and B button would light green for a game, then light red when it's pushed. All other buttons would be unlit.
GAME2: the A,B,C,D would light up purple, then light white when pressed. All other buttons would be unlit.