How to mark an image as a favorite?
HydraPaper is really neat! I set my images and forget about it. Months later I want to make a change and I have to struggle to remember that neat program that lets me set my Desktop Backgrounds. And since I'm 68 years old much of my life is spent struggling with memory or the lack of same.
But I distinctly remember being in HydraPaper and struggling to mark an image as a "favorite." I spend lots of time looking around. Look around https://gitlab.gnome.org/GabMus/HydraPaper for hints. Stumble across this lovely documentation https://hydrapaper.gabmus.org/ where I'm teased that favorites is a thing and all I've got to do is "Add them as favorites" but nothing that I can find or stumble across does the marking for me.
How do I mark an image as a "favorite?"