For anyone who wants to argue the Daifuku panel, here is the page upscaled 8x and blown up. Clearly black at the shin upwards, confirming the anime's depiction of the scene. Since there'll be no other showings of the scene, this should settle the argument,
Re: but his other body parts are — disingenuous argument. Plus, again, the anime. If the anime isn;t confusing shading with Haki 100 other scenes, they aren't doing it here. Balance of probabilities, blah.