The issue focused on a new feature in iOS 7 called the Notification Center, which allows users to customize the default look of the app's Notification Center by setting the app's color and background image.

It's a feature that Apple has been working on for a few months now, and we've been playing with some of these features for our daily apps on the App Store and Twitter accounts. But the feature's arrival in iOS 7 isn't yet ready for public testing. So far, iOS 7 beta testing is