I am trying to recolour Cat's Farmer Skirt, but when I do (either using just bodyshop, or with SimPe) the sim's body is shaded darker with some game tops, and not others. What is happening here?

Image 1 shows the sim in a top which has body shading, image 2 shows the same top not doing that with one of Cat's recolours, and image 3 shows a different top with no shading on my recolour.

File attached.

Is your Bodyshop properly configured? Because the texture is 512x512, and it's supposed to be 1024x1024 for adults. If Bodyshop hasn't been set up properly, it reduces the size of the textures.

This type of shading issue often happens if the bump maps and skin texture aren't the same size.

That was the problem, thanks. I never knew about configuring BS, so thanks for that!!