Stock gnome 3.2 Adwaita theme, except for the scrollbars (inspired by those seen on OS X Lion), and the deletion of the grip in the bottom right corner of the windows.
Mutter/Metacity theme modified from elementary-borderless-elegance.
Working fine with Gtk3.2, not sure what would happen with gtk 3.0.
PS: If someone could help me (a tip or something) fixing the windowname color in the window decoration for dark themes, It would be awesome ;)
Changelog version 1.1:
Edited the window theme: Actually modified the Adwaita original mutter/metacity theme, dropping the elementary-borderless. Now the titlebar color for dark themes should be fixed. also, less padding than the original one.