GNOME policy pushed into GTK3 and newer

Given the situation that any way to keep alive that application involved a significant amount of work, all I wanted to do is point out a route I've gone down before that is kind of a middle between "rewrite everything" and "keep everything as-is", onto a platform whose track record for stability and compatibility is quite a bit better than GTK's, instead of simply saying "well just give up, then".

I'm not trying to evangelize, just offer more options. Maybe this is way too much work. That's perfectly fine! Maybe they decide to convert to GTK 3 after all. That'd be great! Maybe they'll indeed sunset the program. An absolutely viable and understandable choice!