{
  "title": "Global Variables",
  "description": "Global variables that can be used in any JSON file.",
  "type": "object",
  "propertyNames": {
    "pattern": "^\\$[a-zA-Z0-9_]+$"
  },
  "additionalProperties": {
    "title": "Global Variable",
    "type": ["array", "boolean", "integer", "number", "string"]
  }
}
