I'm still working on my cabinet, but I've noticed one oddity that I can't pin down. I'm using LEDBlinky with an I-Pac Ultimate I/O and Ultimarc RGB buttons and sticks, LaunchBox/BigBox as the frontend with Rocketlauncher in the middle. One button seems to be a little wonky though, and only under certain circumstances.
P1B1 is my "select game" button in BigBox, and I have it set to light up blue to match the cabinet. For 4-button arcade games, I have it set to P1B2 as it's more comfortable with my button layout. For some weird reason, Neo Geo games are sometimes lighting it up as kind of an off-white instead of yellow (it seems brighter than the "black" of the joystick and not as bright as full on white). It doesn't appear to depend on the individual game, I've tried a few Neo Geo games and have seen the same thing. If I reboot and go straight from BigBox (loads on startup) to a game it will most likely work normally. But going in and out of games, exiting the frontend and going back in, etc. seem to make it more likely to come up wrong. It does return to the correct blue when I exit MAME and drop back to BigBox.
Since I'm still in the configuration stage, I haven't done a lot of game play on it yet, so I haven't noticed it anywhere else. It does kind of stand out there though. The only edit I've made to colors.ini was to universally set the coin lights to red - I'm using the fake coin return buttons and it just doesn't look right to me in other colors.
Playing around with the LED settings and animation editor, I can't get the button to display the wrong color under any other circumstances, it specifically seems to be a random thing when playing certain games.
Any pointers on where to start looking for a solution?