1. Open our mac computer and enter our desktop. We can find a gray rocket symbol in the menu bar at the bottom, click this icon to open all our applications, and then find the computer settings icon in the interface to open our computer settings.

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2. After entering the system preference interface, we can find the icons of desktop and screen saver, and click to open this setting.

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3. After entering this interface, we can choose the screen saver, and then we can choose the screen special effects in it.

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4. After selecting the special effects, switch to the desktop option. We can choose the background that comes with the computer, or we can choose our customized pictures as the desktop background in the folder.

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