iLinux icons are well designed, elegant and this icon set contain icons from different operating system Ubuntu, Windows and Mac. It gives different kind of feel on desktop. This icon set has more than 18,000 different icons and support all Ubuntu/Mint/and Ubuntu derivatives/Debian version. All credit goes to haniahmed who made these icon set. Also check icons collection. You can use Unity Tweak Tool, Gnome-tweak-tool or Ubuntu-Tweak to change themes.
To install iLinux icons in Ubuntu 14.10/14.04/12.04/Linux Mint 17.1/17/13 open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:
To install iLinux icons in Debian/Any Ubuntu/Linux Mint version open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal: