Starting with iOS 10, your Control Center toggles are colored whenever they’re toggled on. This includes the toggle buttons at the top, in addition to the AirSharing buttons and the Night Mode toggle.
On the other hand, anyone who doesn’t like the appearance of the new colorizations in Control Center in iOS 10 and is jailbroken with the beta iOS 10.1.1 jailbreak by Luca Todesco can use one of two new free jailbreak tweaks called Cream 2 and Creamless to either customize all of Control Center's colors or disable them altogether.