(
  counts: {
    Red: 200,
    Green: 1500
  },
  forces: {
    (Green, Green): -0.1,
    (Red, Red): 0.5,

    (Green, Red): -0.5,
    (Red, Green): 0.1
  },
  speed: 1.0,
  damp: 4.0,
  radius: 80.0
)