Not for anything amazing. I'm just putting a humorous picture on the side of the screen similar to what another poster has (buttons for flamethrower, eject passenger, oil slick...). I'd like the picture to blend in with the colors and shapes of the stock background and buttons.
When I have time (ha!) I'll take a photo of the screen and get the color values from that. Hopefully the colors in the photo will be close enough that I won't have to futz too much with the values.