anchor.diff:  String gold_color = "#FFD700";
   String white_color = "#FFFFFF";
   
  -
  +void renderSquare(final Coord c, final String color) {
  +   canvas.fillStyle = color;
  +   canvas.fillRect(width * c.getX(), height * c.getY(), width, height);
  +}
   
   class Gold {
     Coord location;
  
positive.code:     canvas.strokeText("Inside snake pen", 0, 100);
  
      canvas.fillRect(0, 0, 20, 20);
      gold.render(canvas);
      snake.render(canvas);
  
      snake.showPoints();
  
negative.code: }
  
  
  class SnakeState extends GameLoopHtmlState {
    String name;
    Snake snake;
  