As Disaster said, you can upload wallpaper and I just found a setting that allows you to vary the tones on the theme, kind of like an equalizer scale. I haven't played around with yet as I'm busy installing a rear view camera similar to the one Disaster installed. Fortunately I thought ahead and the wires for the rear view camera are tucked away behind the dash mounted cubby hole. That just pops out for easy access to those wires. The hard part (not really hard, just time consuming) is running the wires from the dash to the rear of the cars trunk.
I hold Disaster personally responsible for me spending money on my car. If he hadn't posted photo's of his radio, I'd be $1050.00 richer
(radio, 2din installation kit, camera)