I'm sorry, I misunderstood. I thought you meant the toplevel window controls like close, minimize, maximize. There is currently no way to make all the widgets r

I'm sorry, I misunderstood. I thought you meant the toplevel window controls like close, minimize, maximize. There is currently no way to make all the widgets render using the Win32 API to look like Windows widgets. You probably don't want to do that anyway, it will start to look and act really inconsistent when an application uses custom widgets. Somebody could definitely fake a theme that makes the widgets look like Windows, and ship that with their windows builds, if that was desired. That to me is a much more viable option. There are multiple themes like this for GTK3. [0] [1] I don't know if any have been ported to GTK4 yet, but they could. [0] https://github.com/B00merang-Project/Windows-10 https://github.com/B00merang-Project/Windows-10 [1] https://github.com/B00merang-Project/Windows-7 https://github.com/B00merang-Project/Windows-7