Comment 14 for bug 904958

(In reply to comment #5)
>
> I couldn't find appropriate EWMH atom to show/hide titles of maximized
> windows. My solution isn't unconditional, it adds new checkbox (initially
> unchecked) to WM tweaks.

True, indeed, I got confused.

But gtk+ has a mechanism for that: "_GTK_HIDE_TITLEBAR_WHEN_MAXIMIZED"

https://git.gnome.org/browse/gtk+/tree/gdk/x11/gdkwindow-x11.c#n3472

Would be great to have that as well, so that apps that use this get undecorated when maximized even if the user has not specified the option (so we geta consistent behavior with gtk+ apps at least)