Well I was wondering this as well so I googled it and found some images that look different to the standard two. There seems to be at least one different design for the 208 xy. I will try to upload the images.
I was on a test drive with my OH's Dad who is getting a 15 plate in March - the screen on the demonstrator is quite different to my 13 plate. I'm assuming that's a firmware upgrade? I'd hoped there would be more choice available to download or something for the interface.
Working on new colors at SMEG 3.20.Have some problems in testing as there is no emulators for this and will try it on my car.
Maybe in one month will have some changes (interface color, not the appearance, as the "place" of active buttons I can not change)....
Will keep you posted.