Layered Render
A node of the Style graph, in the Inputs group.
Layered Render takes the camera: what it rendered of the action at this frame, before any pixel-art step, with each of its eight layers on an output of its own — albedo, normals, depth, part, material, coverage, key light, shadow. The shading reads normals and shadow, the lines depth, normals and part. It is a group of atoms: open it and it is the frame of a Render node (one layered frame) and eight Layer nodes, each taking the layer chosen on it out of the frame. The wires show what reads what, and they are real: wire a Noise field into Light and shade's shadow and the shadow is that noise; unwired, a pass reads the camera's render itself.
How it fits with the rest: the Style graph in the manual.
In the same group
Camera · Render · Layer · Picture · Fill light · Motion · Surface dither · Loop phase · Ramp of the colour · Metallic · Roughness · Emissive · Occlusion · See-through · Edge pixels · Ramp position