How do you add custom swatch into the library without manually entering the LAB Value?

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• My belief is that a delta E value that is discernably different, are different based on the specific color. Do you have a single Delta E value tolerance? Or is the tolerance different for each color?

  My belief is that a delta E value that is discernably different, are different based on the specific color. Do you have a single Delta E value tolerance? Or is the tolerance different for each color? The dE tolerance is critical since it determines ...