Once you’ve selected your GIF, you can adjust its alignment, scaling, and background color.Select Browse from its initial screen and select the GIF that you want to set.Open the installed GIFPaperPrefs program.The installation will be done in a few seconds. Select the option that you want (Install for this user only or Install for all users of this computer) and click on Install. A popup window will appear asking you whether you want to install the GifPaperPrefs preferences pane.Double-click on the installation file named GIFPaperPrefs.