dev/defs/custom_property_boolean.json

{
  "name": "CustomPropertyBoolean",
  "key": {
    "int": 129,
    "string": "custompropertyboolean"
  },
  "extends": "custom_property.json",
  "properties": {
    "propertyValue": {
      "type": "bool",
      "initialValue": "false",
      "animates": true,
      "key": {
        "int": 245,
        "string": "value"
      },
      "bindable": true
    }
  }
}