So I just returned my 16gb iPad for a 32gb one (wanted more space) and I think I'm seeing a tint difference between this one and my first new iPad. Mainly it seems like the bottom left potion of the screen is more yellow than the rest of the screen. I could just be reading too many of these complaint threads so I might be buying into the whole OCD hype, but does anyone have any test or something I can use on my iPad to see if the screen is actually messed up. I did the pixel test and no problems there. But I need something for color or hue.