Change the Desktop Background
To give OS X a different look, you can change the default desktop background. OS X offers a wide variety of desktop background options. For example, OS X comes with several dozen images you can use, from abstract patterns to photos of plants and other natural images. You can also choose a solid color as the desktop background, or you can use one of your own photos. You can change the desktop background to show either a fixed image or a series of images that change periodically.
Change the Desktop Background
Set a Fixed Background Image
Open System Preferences.
Note: See the “Display System Preferences” section, earlier ...
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