Configuration

Set up some defaults.

settext(18)

Compute color in gradient plots, where 0≤x≤1. First uses grayscaling, second one color.

color::{fillrgb(0.4+0.4*x%P%W;0.4+0.4*x%P%W;0.4+0.4*x%P%W)}
color::{fillrgb(x%P%W;0.8;1-x%P%W)}