I had been happy MBP 2012 retina user until last year when my car glass was broken and it was stolen. This was the perfect time for me to buy new MBP 2016 15 with touch bar. First few months were gorgeous, however later I've found one reasonable problem with the body of the laptop. Basically, my screen cover and bottom cover are made from one color, while middle part differs. Photos are attached. Certainly, I had an appointment with apple support to solve my issue. However, they decided that this color variation is absolutely normal and they are not able to help me. What do you think, is it normal?