code: function (points, width) {
  		// points format: [M, 0, 0, L, 100, 0]
  		// normalize to a crisp line
  		if (points[1] === points[4]) {
  			points[1] = points[4] = mathRound(points[1]) + (width % 2 / 2);
  		}
  		if (points[2] === points[5]) {
  			points[2] = points[5] = mathRound(points[2]) + (width % 2 / 2);
  		}
  		return points;
  	}
docs: Make a straight line crisper by not spilling out to neighbour pixels
  @param {Array} points
  @param {Number} width