This video shown you how to Install Numix Icon in Ubuntu 14 04 LTS Trusty Tahr.
Numix Icon Packs is a small project developed by Numix project team focused to create high quality GTK themes and icons for Linux desktop. Their goal is to make a “difference” in theming and to present you a modern and stylish desktop without damaging its usability while at it.
Add the PPA numix icon
sudo apt-add-repository ppa:numix/ppa sudo apt-get update
Install Numix icon and theme
sudo apt-get install numix-icon-theme numix-icon-theme-circle numix-icon-theme-shine numix-icon-theme-utouch
Install Numix GTK theme:
sudo apt-get install numix-gtk-theme
Install Numix KDE Theme:
sudo apt-get install numix-kde-theme
Install all Numix Wallpaper:
sudo apt-get install numix-wallpaper-*