Hey, I was wondering if people with a white 3DS had issues with the rear screw covers getting dirty or stained. I'm referring the rear screw covers, just below the AC charging port and above the cover plate in New 3DS models. It doesn't look too bad in this picture, but it's much more noticable without natural light masking the problem. The wear was most likely caused by my case, since the interior is lined with black felt. Does anyone know of a safe way to clean them? I was thinking of trying to cover it up with an acrylic paint marker, but I think a really fine grit sandpaper would be better. What do you guys think, or do you all have other ideas?