If you want to cover information and reveal it slowly during a presentation, you can add a Screen Shade to a page. You can also change the color of your screen shade to enhance your presentation.
If you add a Screen Shade to a page and save the file, the Screen Shade appears over the page the next time you open the file.
To add a Screen Shade to a page
Press Show/Hide Screen Shade.
A Screen Shade appears over the entire page.
Press the screen shade to automatically change it to a different color.