{
  "params": {
    "hull": {
      "type": "choice",
      "options": [
        "blue",
        "red",
        "black",
        "green",
        "grey"
      ],
      "default": "blue",
      "label": "Hull",
      "describe": "Hull colour above the red antifouling: blue, red, black, green or grey. The funnel band takes a contrasting colour."
    },
    "load": {
      "type": "range",
      "min": 0,
      "max": 1,
      "step": 0.05,
      "default": 0.6,
      "label": "Load",
      "describe": "How full the deck is: 0 sails empty with bare hatch covers, 0.6 has uneven stacks two to four high, 1 is fully loaded five high."
    },
    "cranes": {
      "type": "toggle",
      "default": false,
      "label": "Deck cranes",
      "describe": "Three deck cranes along the port side, so it can load itself in small ports (a geared feeder ship)."
    },
    "length": {
      "type": "range",
      "min": 100,
      "max": 200,
      "step": 5,
      "default": 140,
      "label": "Length",
      "describe": "Length overall in metres; the beam stays 22 m and more container bays are added as it grows. 100 is a small feeder, 200 a large regional carrier."
    },
    "seed": {
      "type": "range",
      "min": 1,
      "max": 50,
      "step": 1,
      "default": 7,
      "label": "Seed",
      "describe": "Shuffles the container colours and the stack heights."
    }
  },
  "presets": {
    "empty return": {
      "load": 0,
      "hull": "red"
    },
    "geared feeder": {
      "cranes": true,
      "length": 110,
      "hull": "green",
      "load": 0.5
    },
    "fully laden": {
      "load": 1,
      "length": 190,
      "hull": "black"
    }
  },
  "night": {
    "window": {
      "zone": "window",
      "color": "#ffe0a8",
      "intensity": 1,
      "describe": "Rows of lit cabin windows and the bridge."
    },
    "nav": {
      "zone": "nav",
      "intensity": 2,
      "describe": "Sidelights red to port and green to starboard on the bridge wings, white masthead lights."
    },
    "floodlight": {
      "zone": "floodlight",
      "color": "#fff2cc",
      "intensity": 1.6,
      "describe": "Floodlights over the container bays."
    }
  }
}