If you are bored with your desktop and want to give it a little style, or if you just want to impress your friends, you can run a screen saver as your desktop’s background to liven it up.
1. Right-click on the desktop and select Change Desktop Background.
2. Select the Screen Saver tab.
3. Select the screen saver that you wish to run as your desktop background.
4. Close the Desktop & Screen Saver window.
5. Open Terminal.
6. Copy, paste and execute the following Terminal command:
/System/Library/Frameworks/ScreenSaver.framework/Resources/ScreenSaverEngine.app/Contents/MacOS/ScreenSaverEngine -background
7. Minimize the Terminal window.
Your background is now the screen saver that you selected in step 3. To return the background to your wallpaper, simply close the Terminal window.
