code: function (closed) {
      if (closed === undefined) closed = false;
      if (closed) this.context.closePath();
      this.context.fill();
      this.pathStarted = false;
    }
docs: Fills the active path
  Calls the context.fill() method
  [https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/fill]
  
  @param {?boolean} closed (default = false) if the path needs to be closed before filling it