TheTomas I don't know what Garry's intent was but the last time I internationalized an app (admittedly, this was an embarrassingly long time ago) the rule of thumb was, each button should be pre-sized to handle the longest text any button in that container or area will need to take -- so for example, "Sauvegarder" sets the size, even if "Save" looks a little bit lost at that size. It's not that there aren't other ways to do it, but my impulse would be to size all the toolbar buttons wide enough to accommodate the longest text any of them will need to fully display. Otherwise if each button sizes itself as small as possible, they look a bit haphazard.
For this reason, personally, if there were auto-sizing I'd want it to be able to be turned off. But that might just be me.
