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its A. Themes
theme is a set of unified design elements that u can apply to a eye catching headline.
theme is a set of unified design elements that u can apply to a eye catching headline.
You can apply colorful, eye-catching designs to your entire presentation at once with Themes on the Design tab. A theme is a named set of colors, fonts, and effects. Click a theme and then explore the Variants group to further customize a selected theme