I would +1 vote to add a light feature. In 3d shaders light is usually additive algorithm to add the color of the light to the 3d shape(based on the grayscale map contribution). Thus it would be nice to have a lighten(not only darken) feature for ShadeMaker.
Also, I’m using the nightly builds and I get errors when opening the plugin.
I get the same with Pigment.O . Apparently the Qt version the nightly Krita is using is requiring the values are cast as ints for the function calls.