function setup() {
  createCanvas(800, 800);
  colorMode(HSB);
  noStroke();
  shakeColors();
}
shows how to interpolate colors in different styles/ color modes

MOUSE
left click          : new random color set
position x          : interpolation resolution
position y          : row count

KEYS
1-2                 : switch interpolation style
s                   : save png
c                   : save color palette