Visually indicate highest possible rank in a mode
I think it would be helpful if the highest attainable rank was rendered in a different color, maybe red or golden, as this information is not necessarily obvious to anyone not overly familiar with those games, i.e. in TGM1 the GM grade is achievable in all modes (even in Secret Grade, as we now know), yet in TAP you can only achieve GM in Master and Death while e.g. the highest rank is S9 in Big or Item.