Returns the fallback icon name for windows.
The returned string is owned by GTK and should not be modified. It is only valid until the next call to [func@Gtk.Window.set_default_icon_name].
the fallback icon name for windows
See Implementation
Returns the fallback icon name for windows.
The returned string is owned by GTK and should not be modified. It is only valid until the next call to [func@Gtk.Window.set_default_icon_name].