Hi I want to ask you all a question, I've just noticed that when I slightly tilt my iPhone side to side and up and down I see a rainbow effect which is now bugging me to no end, I do have a zag glass screen protector but I've always used them with no issue at all, I also did notice this when I first got my iPhone and took it out of the box but though it was because of the plastic it comes with. Also the rainbow effect i am seeing is when the phone is on. Has anyone experienced this?