

If you change the background using the Format Background options, all your background pictures will be removed. To apply a custom background, click Apply to All. If you choose to do it via Format Background, its panel will appear on the right side of the screen. You can choose any of the presets or click Format Background, where you’ll be able to use solid colors, gradients, images or patterns as background. To change the color of the background, click the Variants drop-down arrow and click Background Styles.You can see a little preview in the top-right corner of this window.

A new window will open, where you can select the colors that best suit your needs. If you want to apply a specific palette to the presentation, click Customize Colors.
