To make a custom theme in Microsoft PowerPoint, you will have to modify an existing theme by changing the color, font, and effect settings.

Learn how to search for online templates and themes in PowerPoint, and download & use them to make your presenation look good, appealing & persuasive.

How to Create a Master Slide in Powerpoint. Presentation expert Garr Reynolds says "You clearly need a consistent visual theme throughout your presentation." A consistent theme not only helps your ...

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