code: function create(props) {
      var knob = Object.create(this);
  
      // apply Widget defaults, then overwrite (if applicable) with Knob defaults
      _canvasWidget2.default.create.call(knob);
  
      // ...and then finally override with user defaults
      Object.assign(knob, Knob.defaults, props);
  
      // set underlying value if necessary... TODO: how should this be set given min/max?
      if (props.value) knob.__value = props.value;
  
      // inherits from Widget
      knob.init();
  
      return knob;
    }
docs: Create a new Knob instance.
  @memberof Knob
  @constructs
  @param {Object} [props] - A dictionary of properties to initialize Knob with.
  @static