Darksight, Infravision, & Ultravision

I’m including this illustration in the next version to afford players a better sense of darksight’s low fidelity. Can you fight using it? Absolutely. But finer discernment like reading scrolls or noticing subtle details on the walls are right out.

Older versions were a bit cagey on exactly what a character with infravision or ultravision could see. The DMG gave a lengthy explanation along with this illustration but I never saw anyone use those rules. It was always something like “your character can see in the dark, but not real well”.

Ultimately I think the turn to a more scientifically nebulous “darkvision” or “darksight” suits the game better.