Put the summary of the bug you're having here

(sorry for the errors in language in the big part I'm using google translator)

What I expected to happen was...:
when craft one firework star and adds a randomly color expected outcome and that only 1 win new star in the outcome of craft

What actually happened was...:
when you put more than one star in the craft and put a new color you get the same number of stars they were in the craft for example if you put 64 whit a new color you get 64 for each craft you do and 63 in the next 62 in the next ,successively.in my opinion the problem was in fact you have used the same code of dyeing a leather armor in the dyeing of the firework star buts the leather armor don't are stackable and the star are, to solve the problem you probably have to rewrite the codes of both, creating a new code specific to the star, or make the stars non cumulative

Steps to Reproduce:
1. put 64 firework star in the crafting
2. put a new color whit this 64 firework stars
3. see what happens