You can change the background of your PowerPoint slides using the "Format Background" feature located in the "Design" tab.

You can change the background to anything you like if you're using Powerpoint to create presentations: a picture, a color, a gradient, or even an in-motion video. You'll know the best background for ...

Microsoft's PowerPoint presentation program offers you a variety of tools to create exciting presentations and slide shows. You may choose from a collection of features that allow you to add and edit ...

PowerPoint has a great set of special effects, graphics, animations, and template themes. There’s just one problem: Everybody else has the same effects, animations, and template themes that you have.