iOS 8 vs iOS 7 Control Center
The Control Center arrived in iOS 7 as an easy way to access iPhone settings and common apps like a calculator or clock. You still get the same overall access to your settings and controls for music and brightness, but there is a anew look.
In the iOS 8 vs iOS 7 comparison above you'll notice that the iOS 8 Control Center design features darker areas to help show where the actual buttons are. This chopped up new look may not make the final cut.