Install Orion GTK3/2 Theme in Ubuntu 12.10 Quantal/Ubuntu 12.04 Precise/Ubuntu 11.10/Linux Mint 14/13/12

Orion is light GTK theme. This theme support Unity, Gnome Shell, Openbox and XFCE. This theme is available for GTK 3.2/3.4/3.6 which uses Unico engine and also support GTK 2.0 which support Murrine engine.
orion theme
Themes tested in Ubuntu 12.10/12.04/11.10.
FS-Icons used in Screenshot
You can use Gnome-tweak-tool or Ubuntu-Tweak to change theme.

To Install Orion theme in Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:
That's it
Source: Orion Theme
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