I have recently installed the Gnome Shell desktop on Linux Mint 14 and I have found a nice theme set for that desktop.
Type this command to install the Bluebird theme and some nice wallpapers.
sudo apt-get install shimmer-themes shimmer-wallpapers |
This installs the GTK theme engine, some wallpapers and a nice Metacity theme that is very attractive indeed.
![The Bluebird theme engine in action.](https://www.securitronlinux.com/wp-content/uploads/2013/03/bluebird-910x720.jpg)