Onyx remains to be a useful tool, and on a few occasions has resolved problems like apps crashing on launch, corrupted cache (somewhere), etc. TinkerTool for just a few easy interface tweaks. I also used to run the long-gone command line utility AppleJack, which I still miss having in the troubleshooting toolbox.
Very good to know. I was a regular Onyx user through Mt. Lion and El Capitan and stopped using it after I upgraded to Sierra. Now I’m using Mojave and downloaded a new Onyx out of habit, but was wondering if I really needed it. Will give it a try. Thanks!