Although I am too careful with my jolla, and never put it anywhere but either in pocket or in desk, the white OH has some smudges that look like plastic is worn off.
Wet wipes do not remove them, so I tend to believe they are just worn off plastic. Result is matte look is lost, giving slowly its way to some glossy one.
Anyone else with same problem? Is it possible that it is not plastic worn off and it can be cleaned somehow?

EDIT: To clean smudges off the white OH, just use some soft fabric, or cotton, and some ethanol, at least 70%. Ethanol 95% does same good job, no side-effects.