The end of the world is nearer as these days people find easier to create a huge 50mb behemoth based on Electron to provide simple GUIs like this loginized “Gnome GDM Login Theme Manager. Easy and Fast Login Theme Manipulation”.

Thank you juhaku for all the fish, but I wonder why you haven’t used Gtk directly…. it’s even the suggested way to create simple Gnome apps… See «How to build, install and create a tar.xz of a Hello World program»