Willyxyz has just released a Unity plugin designed to work with the Farmer Sprite System. It sets up a paper doll system with easy layer and color swapping. Pre-loaded with all the animations ready to go. If you're a Unity user looking to shorten your dev time, this is worth checking out:

One click - Paper Doll System for Unity

Please note that this is a plugin specifically designed for the Unity game engine. If you're using Godot, you can find a similar plugin here.