Does the iPhone 5 have the plastic rim around the edge of the display like the iPhone 4/4S did? I'm asking this because I plan on buying the white/silver 5S and my mom has the white 4S and has taken very good care of it. Even still, the little plastic rim around the display has become a dirty brownish color that is definitely noticeable. So does the iPhone 5 have this as well? Also, if you have a white iPhone 5, is the plastic rim around the display dirty (if there is one, I've checked pictures but can't accurately tell if there is one or not)?