Apple Chameleon Patent
MacObserver details a recent patent filed by Apple on February 6, 2004.
A computing device is disclosed. The computing device includes a housing having an illuminable portion. The computing device also includes a light device disposed inside the housing. The light device is configured to illuminate the illuminable portion.
It goes on to describe a process in which the computer's housing can change lighting/appearance based on user preferences or on screen content ("In one embodiment, the illumination processing 600 mimics the colors appearing at the regions of the screen display to zones of the housing").