10/26/2019 (Sat) 18:45:50
It is a bunch of different things really. As you say, it has wider support on non-Windows, but it is also more internally customisable, so 373 should have support for complete program theming and a proper night mode. It uses CSS files, funnily enough.
It has a larger and more active dev team, more support for modern tech like swipe actions and high DPI displays, better code, more plugin support. With luck, I'll also be able to launch an embeddable mpv window in the media viewer for 373, which will mean nice video and audio support in one go.
Now I have gotten into it, I think I personally like Qt a bit more than wx. I am feeling good about working with it more in future.
The user who wrote the conversion is enthusiastic about Qt and has been talking to me about the idea of converting for more than a year, I think. I generally agreed with the concept of moving over, but the idea of changing all the code in one go was always too much work. He suggested maybe trying to write an auto-code-converter if I was ok with it (which I was), worked on it for ages, and here we are.