I have a directory with over 1000 images that are used for wallpaper. At least 1 slipped in there that was inappropriate and I tried to find it and gave up. It would be useful if I knew what the filename was (meaning that it would either be on the screen, or that I could r/click and see the name among the Desktop Wallpaper preview. Another useful feature would be to have the ability of deleting the image. A third thing I liked which was on an old app that I used way back last century (called "Wallpaper Picker") included check boxes that I could select for each quarter hour, so that when the actually pc's clock changed so did the wallpaper. A little different than the countdown that's currently used, although they had that too.