I’ve tried that, but it adjusts the whole image rather than focusing on the shadows. It might just be something I’m getting wrong, but in the Epson scan software, it seems to only affect the shadows and dark areas. More often than not though, it affects the whole photo and screws it up, but when it does get it right, it’s great.
Because it screws it up so often, I can live without it, but I’m still struggling with the colour cast.