Grease Pencil new nodes and butterfly effect with Animation Nodes in blender 2.8 – Tutorial

3DSinghVFX writes:
I have added two new nodes for grease pencil in animation nodes which will allow you to assign a new material/materials to grease pencil object and also allow you to control the material color with animation nodes. I have updated the “grease pencil object node” and Material-Instancer Node. I have made a butterfly effect with the grease pencil. All links are available in the video description.
Happy Noding… :)

Fine,
an other question: Do you know who will write this:
https://docs.blender.org/manual/en/dev/grease_pencil/introduction.html?
The complete chapter is empty. Until when…?
Sorry, I do not know who is writing blender manual.