Did you find you chose the wrong design for your PowerPoint presentation? No need to close it and open a new one.
Quickly change to a new design from the Themes group in the Design tab.
Themes are live galleries, allowing you to see what it looks like before you make a choice. Simply hover over the theme you like best, to see how your presentation will look.
Click the theme you want to use, and PowerPoint will alter the presentation for you.
