Credits
This is a major new release of Pinta, with large changes to its architecture including porting to GTK4 and libadwaita. Using GTK4 also required porting Pinta to use a new library (Gir.Core)...
Pinta is a GTK clone of Paint.Net 3.0, with support for Linux, Windows, and macOS.
I was looking for something like this in gtk for some time now.