That will buff right out! ;)
DO NOT TOUCH A SCREW! send it to DJI and have it fixed. If for some crazy reason you decide to turn a screw DJI will know and your warranty will be voided. There are no parts you can get for it if you break something.
Some very ambitious footage from a custom built FPV rig that had FAA approval for some close-up tornado investigations !
Obviously the prefix for this post will be wrong, because there is no option for FPV / Custom.