How to change leave color at runtime?

How would I make the leaves on terrain trees made in the tree creator change color? I want to add a season system to my game, and I do not know how I would. I cannot figure out a working way to change leave color, at runtime.

Thanks in advance.

The code is terrible I should go back and update it but as is, here’s a starting point

Essentially you create multiple trees/prefab combos maybe one represents normal, one fall and then a game trigger swaps them; that part is dangerous so make sure you backup/test in integration project/etc.