Install Ambiance-Crunchy theme in Ubuntu 12.10
Add the Ambiance-Crunchy themes to your Ubuntu 12.10 system
Here's how you can install the Ambiance-Crunchy themes to your Ubuntu 12.10 computer.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository ppa:noobslab/themes
sudo apt-get update
sudo apt-get install ambiance-crunchy
For more, see the original article at the link below.