{
  "_comment": "A painted tectonic layer: one colour per plate, and how that plate is moving. heading_deg is a compass bearing over the map - 0 points at the top of the image, 90 to the right, 180 to the bottom. speed_cm_yr is drift; what happens at a margin is the difference between the two plates either side of it, so two plates drifting the same way are a boundary doing nothing. spin_deg_myr turns a plate about its own centre, positive clockwise, and it is worth setting on at least one: without it every margin is the same all the way along, and with it one end collides while the other slides. Paint the plates, not the mountains - where two of these meet, the collision, the belt and its faults are worked out from the motions. Repaint the blobs freely; only the colours have to keep matching this file.",
  "image": "Map3.plates.png",
  "warn_distance": 60,
  "plates": [
    {
      "name": "plate_0",
      "rgb": [219, 83, 83],
      "speed_cm_yr": 3,
      "heading_deg": 341,
      "spin_deg_myr": -22.91
    },
    {
      "name": "plate_1",
      "rgb": [83, 123, 219],
      "speed_cm_yr": 2.1,
      "heading_deg": 207,
      "spin_deg_myr": 15.62
    },
    {
      "name": "plate_2",
      "rgb": [163, 219, 83],
      "speed_cm_yr": 5.8,
      "heading_deg": 192,
      "spin_deg_myr": 44.51
    },
    {
      "name": "plate_3",
      "rgb": [219, 83, 202],
      "speed_cm_yr": 5.9,
      "heading_deg": 212,
      "spin_deg_myr": -44.77
    },
    {
      "name": "plate_4",
      "rgb": [83, 219, 197],
      "speed_cm_yr": 4.4,
      "heading_deg": 285,
      "spin_deg_myr": -33.44
    },
    {
      "name": "plate_5",
      "rgb": [219, 157, 83],
      "speed_cm_yr": 3.5,
      "heading_deg": 321,
      "spin_deg_myr": -26.46
    },
    {
      "name": "plate_6",
      "rgb": [117, 83, 219],
      "speed_cm_yr": 1.6,
      "heading_deg": 281,
      "spin_deg_myr": 12.3
    }
  ]
}