I think that was an unfortunate effect of us using the English phrase as the key, and there of course existing many different words in other languages for the same word in English?
The proper solution to that is to not use “Off” as a key but rather something like “ui.dropdown.compression.disabled” and so on which is then unambiguous. We might do that some day. It would make the UI a little bit more cumbersome to develop, but that’s mostly it I guess. Pull requests probably welcome. 