There's an item called "Mysterious Fabric Dye" which is also broken if you want to try to fix it.
Hrm.
Its object name is TOOL_UNI_Dye_A_Mystery. That isn't anywhere in ItemCombos.
Here is its definition in Potion.txt:
Code
new entry "TOOL_Dye_Mystery"
type "Potion"
using "_Drink"
data "Act part" "16"
data "Weight" "250"
data "Value" "10"
data "ExtraProperties" "Poison,100,2"
data "InventoryTab" "Ingredient"
If I had to guess, it's used in a script for a puzzle somewhere, but nothing's stopping us from making recipes with it, nope.