Etch Gradient

Select the Etch Gradient color type within the Substance Lab's Color section for an effect that colors the master noise using an additional noise and two colors.  These are the properties that become available when this color type is selected.

At the bottom of the Color section is a yellow Select Noise box that is responsible for defining a noise that will influence the construction of the final pattern.  The options appearing within this box are identical to those of the Select Noise node.