Please note that these backgrounds work best with the "Simple", "Picture Windows", "Awesome Inc.", or "Travel" templates.
Open your dashboard.
Open your dashboard.
Click on the little arrow next to the paper icon and then click on "Layout"
Find the "HTML/JavaScript" and click on it.
Then find the code of the background that you want and copy and paste it and then click save.
Click on the Save button at the top of the page and you're done!!!