Overmap tileset possible?

Relatively simple question - is it possible to use a tileset for the overmap at the moment, or is it still hardcoded to ASCII?

I thiiiiink it has to be ASCII. Feel like it would be replaced already, if it’s possible.

You can though go into the fontdata file and change the font the map uses. If you change it to a square font it will at least have the same proportion as the tilesets, which I think are all square.