GTK 3.x主题：Adwaita-X dark/light，在Ubuntu 12.04可以使用。
Gtk3/Gtk2 and Mutter (window manager) theme.
You will need the murrine and pixbuf gtk engines to use this theme.
Based on Adwaita Gtk and Holo mutter themes.
GTK2 ENGINES REQUIREMENT:
Ubuntu/Mint/Debian distros:
sudo apt-get install gtk2-engines-murrine gtk2-engines-pixbuf
Fedora/RedHat distros:
yum install gtk-murrine-engine gtk2-engines
ArchLinux:
pacman -S gtk-engine-murrine gtk-engines
以上图片上传到红联Linux系统教程频道中。