You can change the colors in your color scheme, choose a different color scheme, or create your own color scheme. You can apply the color scheme to one or all the slides in a presentation.
You can modify any or all of the colors within a color scheme to create your own color combinations. You can apply your color scheme changes to the current slide or to the entire presentation.
In addition to the eight basic color scheme colors, you can add more colors to your presentation. Colors that you add to a specific color palette appear in all color palettes and remain there even if the color scheme changes.
You can add a color, a shade , a texture, a pattern, or even a picture to the background of one slide or all slides. PowerPoint has several different textures, patterns, and pictures that you can apply to a presentation.