anchor.diff:      String hex = "#";
   
       // Connect to database
  -    PostgreSql dbConn = await dbManager.getConnection();
  -
       try {
         // Find username_color for username
         String query = "SELECT username_color FROM users WHERE lower(username) = lower(@username)";
  
positive.code:       // Log error message for investigation
        log("Unable to get username color for $username: $e");
      } finally {
        // Close database connection
        if (dbConn != null) {
          dbManager.closeConnection(dbConn);
        }
  
        // Return result (all uppercase)
        return hex.trim().toUpperCase();
      }
  
negative.code:     }
  
      // Connect to database
      bool success = false;
      try {
        // Update username_color for user with email
        String query = "UPDATE users SET username_color = @hex WHERE email = @email";
  