A colorless or colorblind conduct, settable with OPTIONS=colorblind or something similar at the start of the game, as a permanent affliction. When you are colorblind, it is as if the color option is forced off, and any items with colorful random appearances cannot be distinguished from one another (all gems are just “a gem”, all colored potions (but ‘‘not’’ ones such as fizzy, bubbly, white, black) are just “a potion”, ditto for colorful spellbooks) until formally IDed. Figuring out how calling object classes works might be tricky, because having it work as it currently does would mostly nullify the identification challenges of being colorblind.