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PowerPoint - Applying Themes to Your Presentations
A fast way to give your slides an attractive, professional look is to apply a theme. You can apply a theme to all slides, or specific slides, for a unique impact.
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On the Design tab, hover over the Themes to preview how it looks, and select the one you like.
Select More to see more Themes.
By default, the theme you select applies to all slides in your presentation.
In the Variants group, select More to change Colors, Fonts, Effects, and Background Styles.
To apply a theme to only one or a few slides: