Made of little things.

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$version": 1,
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "screenShake": {
      "type": "boolean",
      "title": "Screen shake",
      "description": "Shake the view when meteors hit. Reduced automatically when the system asks for less motion.",
      "default": true,
      "x-napplet-section": "Comfort",
      "x-napplet-order": 1
    },
    "touchControls": {
      "type": "string",
      "title": "Touch controls",
      "description": "Show the on-screen movement and jump pads.",
      "enum": [
        "auto",
        "always",
        "never"
      ],
      "default": "auto",
      "x-napplet-section": "Controls",
      "x-napplet-order": 2
    },
    "soundVolume": {
      "type": "integer",
      "title": "Sound volume",
      "description": "Volume of sound effects and ambience, in percent. There is no music.",
      "minimum": 0,
      "maximum": 100,
      "default": 80,
      "x-napplet-section": "Sound",
      "x-napplet-order": 3
    },
    "rumble": {
      "type": "boolean",
      "title": "Controller rumble",
      "description": "Vibrate the gamepad on nearby explosions, where the browser supports it.",
      "default": true,
      "x-napplet-section": "Controls",
      "x-napplet-order": 4
    }
  }
}