This month Matthew Johnson released the Visual Studio Color Theme Editor extension for Visual Studio 2010. This extension allows users to customize colors used by Visual Studio 2010 and contains three example themes (Autumn, Emerald and Silver):
Default Visual Studio 2010 theme
Visual Studio 2010 Silver theme
Jameel Al-Aziz, in addition to his Tabs Studio 2010 style, has created Tabs Studio 2010 Silver theme style:
Tabs Studio 2010 Silver theme style
Get Tabs Studio 2010 Silver theme style by Jameel Al-Aziz (Visual Studio 2010 Beta 2 and Tabs Studio v1.7.6 or greater required).
Tabs Studio Blog (organizing Visual Studio document tabs) 