How can I get a color to fade/change into another?

So I’m animating a short werewolf transformation for a project, and during the middle of it, I just want my character’s skin color to fade into the werewolf form’s dark fur color. How can I do this effect? Just simply having a color/texture fade from one color → to to another?

https://docs.toonboom.com/help/harmony-20/premium/reference/node/filter/colour-fade-node.html?Highlight=animate%20colour%20override