How to change recruit's hair colour?

So basically, I've been using Endocore's Redux 1.3 + Equillibrium mod and one thing that bothered me was that Stitch had a blonde sprite, but his avatair is dark haired.

I went into the FT Tools and tried to change the hair colour in two different places, the Hair slider in "Image" and and the Hair colour in the level up screen - but absolutely nothing changed in the game.

I made sure I saved my changes and even tried the "update" button but to no avail.

Does anyone knows what to do? Thanks.