PowerPoint Themes are responsible for styling your presentation. They contain fonts, colors and backgrounds. Each Improve Presentation Template contains from 1 to as much as 7 different styles. See how easy it is to change powerpoint theme.
Themes you will find on the Design ribbon are of two kinds:
You can see it clearly once you unfold the themes pane to its full size:
To make sure your template looks its best, be sure to use its embedded themes.