Is it just me? Or does the 5s have a warmer color temperature than previous iPhones? I can't tell if it's just my 5s, or if this was intended by Apple. The display is just yellow-ish. I open Messages, and I put my 4S side-by-side, and I can observe the difference in temperatures. Is the yellow tint normal? I haven't visited my local Apple Store to compare mine with the ones on display, but it I know for a fact that the iPhone 5 did not have a yellow hue to it (I even compared my 5s with six of my friends' iPhone 5's - none were as warm as mine).