Quick summary
You can change theme colors in PowerPoint Online by accessing the Design tab and selecting a color variant from the Variants Gallery. This lets you instantly apply a new color scheme across your entire presentation without downloading the file.
Steps
- Inside the slide canvas of your PowerPoint presentation, go to the top menu bar and click 'Design'.
- Navigate to the Variants Gallery and click the drop-down arrow next to it.
- Choose the specific variant that contains the theme colors you want to use.
- The theme colors of your online PowerPoint presentation will be changed accordingly.