"breakout_mark": {
  "type": "object",
  "additionalProperties": false,
  "required": [
    "type",
    "attrs"
  ],
  "properties": {
    "type": {
      "enum": ["breakout"]
    },
    "attrs": {
      "type": "object",
      "additionalProperties": false,
      "required": ["mode"],
      "properties": {}
    }
  }
}

 "type": {
  "enum": ["breakout"]
}

 "attrs": {
  "type": "object",
  "additionalProperties": false,
  "required": ["mode"],
  "properties": {
    "mode": {
      "enum": [
        "wide",
        "full-width"
      ]
    }
  }
}

 "mode": {
  "enum": [
    "wide",
    "full-width"
  ]
}