One way to add a background photo to any custom Tumblr theme is to embed a simple CSS tag at the right location in the theme's HTML code.

How to Add a Background to OpenOffice Impress. Picking the right background is a vital part of setting the tone -- and the legibility -- of your OpenOffice Impress presentations.

We’ve put together a step-by-step guide on how to add personalized photos to your desktop. Changing your Windows 11 background image from file finder ...

Personalise your Safari by adding an image of your choice to have in the background of the Start page in the new Safari 14 ...