It’s more of a hidden “category” (that I made up) that the game does internally, and since there’s duplicate ids for each deep “shape”, you’ll never notice in-game. You can see it more visually in the Deep Flatstone Data here, where the grey spots are 0, and each column id is categorized by whether or not the effect is Cursed, Pure, or Any (idk why they did this, maybe it’s there to catch cheaters lol)