Latitude E6540 (see screenshot)

 

The middle part got scratched too much somehow, and now the outer layer (whatever it is made out of) is flaking off and being annoying. 

Ideally I'd like to scrape this off and reapply a similar or identical covering, but I'm not sure what was used or how to best apply it or something similar.

I've heard it may be called an "oleophobic" coating, but I'm not sure if that's what that is. I suppose whatever's good for a touchpad.