{
  "type": "object",
  "additionalProperties": false,
  "patternProperties": {
    "^__[a-z]+__$": {}
  },
  "properties": {
    "__type__": {
      "enum": [ "outputformat" ]
    },
    "__comments__": {
      "type": "object"
    },
    "__position__": {
      "type": "object"
    },
    "include": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "driver": {
      "type": "string"
    },
    "extension": {
      "type": "string"
    },
    "formatoption": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "imagemode": {
      "type": "string",
      "enum": [ "pc256", "rgb", "rgba", "byte", "int16", "float32", "feature" ],
      "additionalProperties": false
    },
    "mimetype": {
      "type": "string"
    },
    "name": {
      "type": "string"
    },
    "transparent": {
      "$ref": "onoff.json"
    }
  }
}

{
  "type": "object",
  "additionalProperties": false,
  "patternProperties": {
    "^__[a-z]+__$": {}
  },
  "properties": {
    "__type__": {
      "enum": [ "outputformat" ]
    },
    "__comments__": {
      "type": "object"
    },
    "__position__": {
      "type": "object"
    },
    "include": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "driver": {
      "type": "string"
    },
    "extension": {
      "type": "string"
    },
    "formatoption": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "imagemode": {
      "type": "string",
      "enum": [ "pc256", "rgb", "rgba", "byte", "int16", "float32", "feature" ],
      "additionalProperties": false
    },
    "mimetype": {
      "type": "string"
    },
    "name": {
      "type": "string"
    },
    "transparent": {
      "oneOf": [
        {
          "type": "boolean"
        },
        {
          "$ref": "onoff.json"
        }
      ]
    }
  }
}

Allow TRUE/FALSE values for OUTPUTFORMAT TRANSPARENT
Allow TRUE/FALSE values for OUTPUTFORMAT TRANSPARENT
