Marking your playlists will allow them to be used for your wallpaper rotation, screensaver rotation, or both. (marked playlists will now show checkmarks when selected)
Marking your playlists allows you to have control over what pictures you see when your wallpaper and screensaver are running. The more playlists you have, the more control you have over what you see.
If you are marking your first playlist and want it to take effect immediatly, please refresh the app by clicking the Webshots logo in the app.