Or perhaps such an addition wouldn't be appropriate because it only applies to GTK applications and the xfce team would only want to include such a control if it were universal? In any case, I'll try to bring this to the attention of the xfce maintainers (and add answers to askubuntu.com, etc).
Or perhaps such an addition wouldn't be appropriate because it only applies to GTK applications and the xfce team would only want to include such a control if it were universal? In any case, I'll try to bring this to the attention of the xfce maintainers (and add answers to askubuntu.com, etc).