How do I install desktop wallpaper?

Select the resolution from the list that matches your computer's current settings. This will bring up an image of the proper size. Once that image is displayed, hold down the Control key and click on the image. Select the "Download image to disk" option. Be sure to remember where you saved the file. Then, from the Apple menu at the top of your screen, select "Preferences." This will open a new window. Select "Desktop." Locate the file you downloaded, and drag it into the image well, then press "OK."

Select the resolution from the list that matches your computer's current settings. This will bring up an image of the proper size. Once that image is displayed, click on it with your right mouse button and select "Set As Wallpaper." Or if you like, you can choose to save the image to disk and install later.

Due to variations from one Linux build to another, see the instructions that accompany your particular GUI.