This article will explain how you can set a background on your Website Builder site.
Scroll down to the Create your website section and click on the Website Builder icon.
Click on the Login button next to the relevant package.
Enable Row/Column editing at the top of the page. You will see a confirmation message that this has been enabled.
Click on the Zone, then click on the Settings icon to open the settings pane.
Click on the + icon to add a new style.
Name your new style, then click Add Row Style.
Select the type of background you would like for the Zone from the drop down list.
Select the outcome for the background depending on your selected type and click on the Save Changes button.