Especially item effects for hair colors. Dithering is basically a filter, which also slightly alters the color of the item. My hair stands out from the rest of my tori because there isn't a way to match the color change that dithering gives to azure.

I’m pretty sure the item forgers and devs have thought of this but the reason why this isn’t a thing yet is probably because it causes or caused bugs

Here's another question. Is there a way to preview effects before fusing? I don't want to fuse an item and then find out I don't like it.