From CMC report you will understand what is the Tonnialy difference from standard swatch, according to data color value you will easily understand what's color you should add during topping, mind it, it is also matter of experience
we have the target metamerism is 0,1, how to reduce metamerism value if >0,1 but actually if see delta E is ok,but metamersm >0,1. please share to me the answer or tips.