What is White ink Curve(Grdiant White) and how to use it?

Question

Would be nice if there was a section that explained every new feature...

Answer 1

If I am getting it right you are asking for "Gradient White under any  colored pixel" which is an option under White ink Tab in Acrorip and  is preferred to use for white layer when printing dark colors printed on light shirts to save some white ink as not much needed for the colors to show whereas you would need to use 100% white when printing on dark shirts.