The backdrop image will be used as the background of your site’s utility pages (e.g. sign in page, registration page). Use an image that will accommodate most screen sizes (i.e. 1900 pixels wide, 1200 pixels high).
- Click Edit your site in the quick links toolbar.
- Click The basics.
- Under the Images tab, next to the Backdrop label, click the Browse button to locate your image. Once you have located your image, click Open.
- Click Save.
- To preview how your image will look in your site, click Preview.