Designer improves slides for Microsoft 365 subscribers by automatically generating design ideas to choose from. While you're putting content on a slide, Designer works in the background to match that content to professionally designed layouts. In this video tutorial from Microsoft, you will learn how to use Designer to improve the look of your PowerPoint slides.

1. Ask for design ideas any time by choosing Design then selecting the PowerPoint Designer toolbar button on the ribbon.

2. The first time you try out Designer, it may ask your permission to get design ideas for you. If you want to use Designer, select Turn on.

3. Scroll through the suggestions in the Designer pane on the right side of the window.

4. Click to select the design you want, or else close the window. If you select one of the ideas, your slide is changed accordingly. You can also select another idea from the pane or go back to your original slide design: Press Ctrl+Z to undo a design change you've just selected.

Learn more: https://support.microsoft.com/en-us/office/create-professional-slide-layouts-with-designer-53c77d7b-dc40-45c2-b684-81415eac0617