Branches
Robert (CSS, libcroco, matching)
* http://bzr-playground.gnome.org/~robsta/libccss-selection-engine/
Carlos GtkStyleContext, timeline, animation
* git://github.com/garnacho/gtk-roles-and-siblings.git (cloned from gitmirror)
GStyle
* http://github.com/troja84/gstyle/tree/master (you need to install Roberts libcss branch, too!)