 struct ModeDetails: Codable {
   private enum CodingKeys: String, CodingKey {
     case title
+    case subtitle
     case websiteURL = "URL"
     case rgbColor = "color"
     case required

  public func title(forModeIdentifier mode: String) -> String? {
    return response?.modes?[mode]?.title
  }
  
  /// - Parameter mode: The mode identifier for which you want the official website URL
  /// - Returns: The URL as defined by the server
  @objc

  }
  
  let title: String
  let subtitle: String?
  let websiteURL: URL?
  let rgbColor: API.RGBColor
  let required: Bool?
