Visual Studio 2012 RC was released about two weeks ago:
Tab colors were changed, most noticeable are the blue color for the selected tab the purple color for the preview tab. Tabs Studio style was updated to reflect these changes:
For those working with tab groups, in VS 2012 Tabs Studio now supports the Float all command to float a whole tab group out of the main window and the Move all to next/previous tab group commands:
Download link: Tabs Studio v2.8.0.