Visual Studio theming patterned after the TextMate theme Monokai by Wimer Hazenberg, more recently popularized as the default theme in the wonderful Sublime Text.
I believe this Visual Studio theme started with the theme by Michael Monteleone, though I can't remember for sure. I probably started with the subset of colors provided at the time by StudioStyles.
Currently, only Visual Studio 2012 Fonts and Colors are included, and are assumed to be used with the Light chrome theme.
To apply, go to Tools -> Import and Export Settings -> Import selected environment settings.
Experimental Visual Studio 2012 theme for use with Matthew Johnson's Visual Studio 2012 Color Theme Editor. I have based this initial version off of the default light theme in VS 2012.