Today, I finally went to another appointment with an Apple store genius that promised me he would help resolve my issue. My iPhone 6 has (what I believe) is a defect. The top right part of the screen is darker than the rest. I can see it clearly on white backgrounds and in photos I take of my iPhone. Talking to the Genius, he seemed to be confused as to what the issue was. He then grabs my phone and compares it to a few store models which seem to have the same dimming in the top right corner as mine. He then states there is no issue, that all iPhone 6's have this and tells me "That's how apple designed them". Any suggestions on what I should do?