Fuji (the camera company) released the X-Pro2 a few years ago. It has a titanium case that was either painted black or came with an optional vapor coating applied. This vapor coating also attracts fingerprints like a magnet -- people were equally up in arms about how it made their camera look dirty.. blah blah blah. I got one with the vapor coating, smeared my greasy fingers all over it, and at a certain point it become just a cool patina on the camera.
Same with the Midnight Air. Trying to keep it clean is pointless. When you have a single big smudge it looks like crap. But keep up the hard work of smearing your DNA on it and after a while it looks mottled and frankly kinda cool. Plus it acts as a theft deterrent - who wants to steal a grimy greasy laptop 🙂