i have to be honest here, its what i do....
anyways, these frost colors looks pretty awesome i must say.
BUT, the colors wear off alot faster than the metalic ones, as it appears to be that the color finishing was not clear coated (hence the matte finish), therefore there is no protection to the colors.
the bezel itself color seems to withstand way better than its buttons, my coffee one lasted 2 months of heavy usage (of course, its mee....) before noticeable. the buttons color seems to chip off easy, like a week's use.
anyway, my suggestion to this problem is that to replace the frost buttons with OEM buttons. and to perhaps get a silicone case. =)