1. Under "System Preferences," choose "Desktop and Screen Saver" OR right click on your desktop to reach the "Desktop and Screen Saver" options.
  2. From the "Screen Saver" dashboard, click on the "Source" drop-down menu (see below) and click "Choose Folder," which allows you to add a folder of pictures as your Screensaver. (Click on the image below to view in full size.)
  3. Choose the "miis-desktop-backgrounds" folder from your "Desktop" or "Downloads" to display as the screensaver.
  4. You can also adjust your screensaver options options, displaying the photos in multiple "Slideshows" formats such as "Reflections," "Floating," "Sliding Panels" and more. Enjoy!