This package is NO LONGER SUPPORTED. Users should migrate to Gtk4.jl, following the tips on the differences betwen Gtk3 and Gtk4.
GUI building, using the Gtk library: https://www.gtk.org/
Complete Gtk documentation is available at https://www.gtk.org/docs
Documentation of this package can be found here.