anchor.diff:  
     void signedOut() {
       print("Player is signed out");
  -    currentPanel = 'main';
  +    isConnected = false;
     }
   
     Future<List<Person>> friends({String orderBy: 'alphabetical',
  
positive.code:   void submitScore(ScoreType scoreType, int score) {
      scoreBoards
      .where((ScoreBoard sb) => sb.scoreType == scoreType)
      .forEach((ScoreBoard sb) { 
        sb.submitScore(this, score)
        .then((PlayerScoreResponse playerScoreResponse) => _playerLogger.fine("playerScoreResponse = $playerScoreResponse"))
        .catchError((e) => _playerLogger.fine("Not able to submit score: $e"));
  
negative.code: 
    refreshHighScoreLeaderboard() {
      if (gamesclient == null) return;
  
      ScoreBoard highScoreBoard = scoreBoards
      .singleWhere((ScoreBoard sb) => sb.scoreType == ScoreType.HIGH_SCORE);
  
      gamesclient.scores.listWindow(highScoreBoard.leaderBoardId,
          "PUBLIC", "ALL_TIME", maxResults: 25)
          .then((LeaderboardScores leaderboardScores) {
  