vicro

var canvas, stage, exportRoot;

function init() {
  canvas = document.getElementById("canvas");
  
  //Setup the canvas widht and height with devicePixelRatio. And set CSS width and height properties.
  var w = 320;
  var h = 357;
  canvas.width = w * window.devicePixelRatio;
  canvas.height = h * window.devicePixelRatio;