Go to the File menu and select [Format] and you'll see three options. Click on any of them, and the options that appear in the task pane.

The design of slides

You've already seen the designs when they slide up a template for your presentation. Clicking on a miniature model, all the slides change. However, if you only want to change the current slide, click the small arrow to the right of the thumbnail and select "Slide selected to implement."

Background

Finally, you can change the background color of the slide. Most templates already have a background color, but you can change easily. An elegant effect may try to fill the effects of substance. These allow you to create attractive color gradients.

Here you can change the design to the current slide. For example, you can change a single column to a bulleted list of double-column list