Are you bored with static wallpaper system ??? Do you want to change your wallpaper after specific intervals ?? If yes , then DesktopNova utility will be apt for you .
DesktopNova chooses the images from single files and/or from folders (incl. subfolders if you wish). You can determine whether the program should start when you log in or not. This program works currently only on a Gnome or Xfce based system.
How to Install :
Open the terminal and run the following commands :
sudo apt-get install desktopnova desktopnova-module-gnome
To install indicator , run the following commands :
sudo add-apt-repository ppa:michael-astrapi/ppa
sudo apt-get update
sudo apt-get install indicator-desktopnova