The image shows four basic quick settings that are shortcuts to options like Wi-Fi, Bluetooth, Driving and Airplane Mode and other system settings.
If you pull down further on the notification center, a full Action Center is displayed.
The second leaked screenshot shows how toasts and notifications from apps are collected in the full Action Center where they can be silently added, updated, and deleted.
Microsoft is also finally splitting volume controls for ringer / notifications and media / apps in the upcoming update.
Foursquare, Bing, and other data sources will help power the service.
Another image also confirms rumours that the OS may be called Windows Phone 8.1 Blue, although Microsoft is yet to comment.
The first Windows Phone 8.1 powered devices are set to appear at Mobile World Congress later this month, although it’s more likely the OS will be officially unveiled at the Microsoft Build conference in April.