jSketch

(function() {

    var options = {
      // In this demo we focus on graphics-related options.
      // See https://luis.leiva.name/jsketch/js/docs/$.fn.sketchable.defaults.html for more configurable options.
      graphics: {
        firstPointSize: 0,
        lineWidth: 5,
        strokeStyle: 'red',
      }
    };

    var sketcher = new Sketchable(document.getElementById('drawing-canvas'), options);

})();