How to Make the colors separate from this sprite like in the original game.

Hi Everyone,
So I have the among us character sprites.
169999-idle.png

So here it is.

I wanted to ask that how should I make the colors of this sprite like in the original game. I have tried it myself many times and I ended up making the color but behind it there was an very thick black outline which was not like in the original game. I am not releasing this game I am just making it for fun.

So if anyone has a way to solve this please reply and if it is regarding Shader Graph please tell me which nodes to use and in which nodes should I plug those in. Feel free to ask for further details.

Thanks

I believe in most cases the shading is just drawn when it’s in photoshop. Not sure how to do it with a shader though