Space Grey Paint
i got my macbook not even a year but the color that the back faded for some reason.
i used to use the old macbook pro for 5 years and there is no such a problem
Does this only happen to the space grey color?
MacBook Pro 13", 10.13
Well it must be the case if it is happening to you.
You can contact Apple In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' / assessment
https://www.apple.com/retail/geniusbar/
https://checkcoverage.apple.com/
https://support.apple.com/my-support
https://support.apple.com/en-lamr/aasp-program
From iOS online Genius Bar appointment:
https://itunes.apple.com/us/app/apple-support/id1130498044?mt=8