PowerPoint design templates feature customized color schemes, slide and title masters, and fonts that come together to create a particular impression . You can apply a design template to a presentation at any time ”even if you created the presentation with a different template. When you apply a design template to a presentation, the masters and color scheme of the new template replace the original ones. You can conveniently view design templates in the Slide Design task pane.
Apply a Design Template
Apply a Design from an Existing Presentation