KB184732051: DFE - Why Yellow and Orange inks are not seen in the graph while setting the Ink limitation per channel in Color Engine Pilot

Question

Why Yellow and Orange inks are not seen in the graph while setting the Ink limitation per channel in the Color Engine Pilot?

Answer

Referring to the screenshot, Inks like Cyan, Magenta, Black and Green are plotted on the graph, but Yellow and Orange are not reflecting in the graph.

This is the intended result because Lightness of Yellow and Orange is almost similar to white.

Pull the Yellow or Orange point in the Gamut and you will notice that the L value indeed does not make much difference.

It is not opted to see them on the graph as there would not be much to see.

For Example, Drag the Yellow point in the Gamut and the L value will not go below 90%.