code: @Deprecated
      public static final String getHEXColorKey()
      {
          s_r++;
  
          if (s_r == 256)
          {
              s_r = 0;
  
              s_g++;
  
              if (s_g == 256)
              {
                  s_g = 0;
  
                  s_b++;
  
                  if (s_b == 256)
                  {
                      s_b = 0;
  
                      return getHEXColorKey();
                  }
              }
          }
          return rgbToBrowserHexColor(s_r, s_g, s_b);
      }
docs: Generates a unique RGB color key, e.g. "rgb(12,34,255)".
  
  @Deprecated
  This is used internally. As public API use {@link Color#getRGB()} method.
  
  Note: Replaced by {@link ColorKeyRotor#next()} method.
  
  @return String