How to Change the Background Design on PowerPoint Slides?
In powerpoint there are pre designed background templates that can be used to give uniformity to the slides
that can be accessed using the task pane or using the menu bar option 'Format -> Slide Design'. Change Background Slide Design in Microsoft Powerpoint 2002
In the above example, a slide is included with a title.
Using the 'Format -> Slide Design' option you can change the background color of your slides, as well as add shading, texture, or patterns..