Install Optimus Blue Inspiration theme in Ubuntu/Mint (Gnome Shell 3.4)

Install Optimus Blue Inspiration Gnome Shell theme in Ubuntu 12.04/11.10/Linux Mint 13/12 (Gnome Shell 3.4)

You can use these Tools to change theme and icons: Gnome Tweak Tool, Ubuntu Tweak
Checkout theme collection here.

Theme tested on Ubuntu 12.04 Precise with Gnome Shell 3.4.1

To install Optimus Blue theme on Ubuntu/Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

Terminal Commands:
mkdir ~/.themes
wget -O optimus_blue-gs.zip http://dl.dropbox.com/u/53319850/NoobsLab.com/optimus_blue_theme-gs.zip
unzip optimus_blue-gs.zip -d ~/.themes; rm optimus_blue-gs.zip

That's it

Source: Optimus Blue Inspiration