Customization Center
The alleged new Customization Center provides a central place where users can change languages, backgrounds, launchers, ringtones, etc. The options can be expanded via Google Play as well, but this announcement alone is nothing more than a convenience for users who frequently play with these settings. However, there are two unique features rumored to be included: filters that modify the entire look of the UI and templates that change the appearance of all icons.
But the truly drool-worthy feature is the ability to switch from custom skins like TouchWiz and Sense into stock Android through the Customization Center. If the manufacturer doesn’t provide a compatible version of its modified UI then the device defaults to stock Android. To make it crystal clear, we will no longer have to wait on manufacturers to upgrade to the latest version of Android.