I think I have this gradation thing down, although I still need to adjust the steps. The 2 steps on the left, .05 and .25 owg*, are too close together. The other steps, from left, are 3, 6 and 12 owg. I think I will eliminate .05 and add 1.5 owg for the next batch. Perhaps I will get a better gradation.
*owg means "of the weight of goods" and is a measure of the depth of shade.




















