Gtk 4 is intended for writing apps for GNOME 4x, and we find that as a result, while they look very distinctive, the UI is restrictive, and it looks badly out of place on any other OS or desktop.

I originally wrote gtk, which included the three libraries, libglib, libgdk and libgtk. It featured a flat widget hierarchy. That is, you couldn’t derive a new widget from an existing one.

GTK+ Architecture There are four fundamental libraries that form the GTK+ runtime environment, required for your GTK applications. They are: GLib Cairo Pango and ATK GLib is an essential library ...