DesktopNova application to change the wallpaper automatically

greetings bye ..
I was just browsing, there are compelling applications namely DesktopNova my opinion, this is a function application can change the desktop theme pictures we automatically think we are setting ..

just okay ..
how to install this application, please follow the following command:
The first open a terminal and type the following lines
sudo apt-get install desktopnova desktopnova-gnome-module

if it is done, you are also required to install DesktopNova Indicator
still remain in the terminal, type the following line
     sudo add-apt-repository ppa: michael-astrapi/ppa
       sudo apt-get update
       sudo apt-get install indicators-desktopnova

try opening the application and specify the settings according to your taste ...

this result

good luck and hopefully useful ...