{
  "$schema": "http://json-schema.org/draft-07/schema",
  "type": "object",
  "additionalProperties": {
    "type": "object",
    "additionalProperties": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        },
        "width": {
          "type": "number"
        },
        "height": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y",
        "width",
        "height"
      ]
    }
  }
}