[NTG-context] Footnote number in different font?

Hello List, this is a nitpick, but it's an itch that's been itching me for a couple of days now. When you put a footnote to Arabic text, the little number (like this one: ²) appears in the font the Arabic text is in, which makes it look distinct from the other footnote numbers in the text and thus difficult to identify for the eye. I'm using \setupnotation[footnote][before=\lefttoright] to keep the footnotes from appearing completely mirrored, but haven't been able to find out a way what else to put there (perhaps next to the \lefttoright) to affect the font of the little number. Is there a way to do that? Cheers, J. R.