Finally had a few minutes to play with Sigil's Dark Mode on macOS Catalina, and I wanted to offer my compliments. Really nicely done, guys and gals. I'm not a dark mode user myself as light text on dark background does funny things to my eyes, but if I were a dark mode devotee, I'd be all over this
In other Mac news, the Feb 3 deadline for notarization enforcement has come and gone and is not stopping Sigil. I did a clean install of Sigil 1.1.0 on Catalina today and it opens just fine (provided you know how to override Gatekeeper by going into Security Prefs).