This panel represents the mating of two separate panels called Desktop and Screen Effects from Mac OS X 10.2. But they still do the same thing:
Desktop lets you dress up your desktop with the background image of your choice. You can choose from one of the several dozen background pictures that come with Mac OS X or use your own pictures. In fact, you can even schedule these background pictures to change automatically at regular intervals—an essential feature for the easily bored.
Screen Saver controls the Mac OS X screen saver—the wild, animated light show that appears on your screen to protect its contents when you’ve wandered away for a cup of coffee.
Mac OS X comes with several ready-to-use collections of desktop pictures, ranging from National Geographic ...