That's correct Magique B. https://askubuntu.com/questions/78352/when-to-use-pkexec-vs-gksu-gksudo
Just wanted to confirm that on all distros I used (did a lot of hopping a year or something more ago), I opened always **all* the graphical applications with plain sudo without any issue whatsoever. In fact I still do that and see no reason to change the habit.
