A little follow up on this thread. Vegas I wish I had some info on your question but I don't.
The Alpine units I've seen all have blue and/or red screens, no green. I have mine set on blue. The trim rings on the Marine versions are a good deal lighter in color than the silver dash trim in our cars. All trim rings can be painted so that should almost become a non issue any longer. Also it would seem that my Alpine does not have an on/off function unless you unlatch the face plate. That makes the keyless operation unavailable so if you are looking for keyless operation like the stock radio make sure your replacement unit has an on/off switch.
Pat