It's really nice that inputs/outputs are highlighted when you're looking at a cell. Right now there are some extra arrows when cells have similar names - several cases where e.g. YOS8 is involved in a formula, so there's also an arrow from YOS, which is not involved. (In the screenshot, YOI and YOS8 are input directly by me, so there should only be two green/in arrows when the current cell is selected.)