April 03, 2013, 4:01 PM — Here's how you can install the Elementary sky-blue Unity icons in Ubuntu 13.04.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository ppa:noobslab/icons
sudo apt-get update
sudo apt-get install sky-blue-unity
For more, see the original article at the link below.