The Brilliant 'Artsaver' screensaver app killed by Catalina...
The most brilliant screensaver ever is Artsaver, developed by a gentleman called Gabriel Zachmann (https://www.informatik.uni-bremen.de/~zach/software/ArtSaver/index.html). You could appoint a folder of pictures to it and use those as a screensaver. And, you could go back and forth in the pictures when the screensaver was on, and even could you by pressing enter show the forestanding picture in Finder. Wow. Please download if you are pre-Catalina. Everything was beautiful until yesterday. I upgraded to Catalina an gone is the brilliant Artsaver :( Just giving us a black screen. Now Apple, could you please give this man a large sum of money and incorporate Artsaver in your standard screensaver options? That would be totally awesome. In the meantime, anyone who can tell me how to make it work again: eternal gratitude!