This is a theme for gtk3 with a focus on code simplicty. Did you ever want to fix one little issue in a gtk3 theme and instantly gave up once you saw the code? That is at least my experience. So instead of tweaking an existing theme to my liking I decided to write one from scratch. There is not a lot of documentation on writing gtk3 themes. It is especially hard to know which selectors can be used to style an element. So there may well be some selectors I missed. I tried to make the code as clear as possible. So maybe it can serve as a reference for people who want to build their own themes. And IMHO it also looks ok, btw. ![screenshot of gtk3-widget-factory](screenshots/gtk3-widget-factory.png) ## Update In the meantime, the situation has improved a lot. [The documentation][1] is much better, the [reference implementation][2] is much cleaner, and there even is an interactive inspector (`$ GTK_DEBUG=interactive {your-app}`). On the other hand, the concept of GTK themes itself is [highly contested][3]. Anyway, I think there is still value in a minimal theme that is easy to modify. So I will keep using this. [1]: https://docs.gtk.org/gtk3/ [2]: https://gitlab.gnome.org/GNOME/libadwaita/-/tree/main/src/stylesheet [3]: https://blogs.gnome.org/tbernard/2018/10/15/restyling-apps-at-scale/