A background is the picture or color behind your slide's content. You can change the background color of one slide or all the slides in the presentation. You can select a hex code or manually adjust the color, hue, and transparency. You can add an image from Google Drive or your computer to one slide or the whole presentation.
Houston Chronicle: How to Change the Background Picture on a Custom Tumblr Theme
Update the background picture on your Tumblr blog, and the change might spark new creative ideas that catapult your blog in exciting new directions. Different Tumblr theme creators use alternate ...
iPhones and iPads offer less scope for user customisation than their Google Android equivalents, but one thing that’s easy to change about the interface is the background wallpaper picture on the lock ...
Change the background theme Important: For some themes, you have the option to change the text background, make corners darker, or blur the background. If these options aren't available, you can't make changes to the selected theme.
Tips: If you change your background, sensitive info might be visible. In your self view, your background appears mirrored or inverted but other participants in the meeting can see the correct orientation. The availability of backgrounds, filters, and styles are subject to client type, account type, and settings set by Google Workspace admins.
Change background wallpaper and screen saver on your Chromebook You can personalize your Chromebook with a custom wallpaper or screen saver. Important: If you use your Chromebook at work or school, your administrator might not let you change your wallpaper or screen saver. If you can't make changes, contact your administrator for more help.