I’ve added preliminary support for Visual Studio 11 Beta. For both light and dark themes in VS I’ve added predefined styles in Tabs Studio (see light and dark style definitions) and the corresponding style is selected automatically on startup depending on your Visual Studio settings:
Tabs Studio with the light theme in Visual Studio 11 Beta
Tabs Studio with the dark theme in Visual Studio 11 Beta
Next I plan to add support for the preview tab and for floating tab groups.
Download link: Tabs Studio v2.6.2.
Tabs Studio Blog (organizing Visual Studio document tabs) 