We’ve already shown you a whole host of new iOS 6 features that Apple didn’t get time to mention during its WWDC keynote yesterday, and here’s another one. In fact, this is probably one of the coolest in the bunch. Notice how the status bar above certain stock apps — like Settings or Mail — is now blue? Well, that actually changes color to match the theme of the app you’re running.
We assumed Apple just gave the status bar a simple lick of paint to freshen it up. Until we started opening apps, which is when we realized that it actually changes color. Here are a few examples of the status bar above Skype, Facebook Messenger, an AdSense app called myRevenue, and eBay.




It appears not every app is supported. In fact, it’s not easy to find ones that are. But it’s possible this is a feature that developers can take advantage of, so we wouldn’t be surprised to see more and more apps taking advantage of this.
Source: Reddit