pulled Node config params and Shape config params into a textfile, and now using token replacement to auto fill Node and Shape config params throughout the code base. In this way, if I need to make changes to the Node or Shape configs, those changes are propagated to all of the other constructors

configParams/NodeParams.txt

@@ -0,0 +1,19 @@
+@param {Number} [config.x]
+     * @param {Number} [config.y]
+     * @param {Number} [config.width]
+     * @param {Number} [config.height]
+     * @param {Boolean} [config.visible]
+     * @param {Boolean} [config.listening] whether or not the node is listening for events
+     * @param {String} [config.id] unique id
+     * @param {String} [config.name] non-unique name
+     * @param {Number} [config.opacity] determines node opacity.  Can be any number between 0 and 1
+     * @param {Object} [config.scale]
+     * @param {Number} [config.scale.x]
+     * @param {Number} [config.scale.y]
+     * @param {Number} [config.rotation] rotation in radians
+     * @param {Number} [config.rotationDeg] rotation in degrees
+     * @param {Object} [config.offset] offset from center point and rotation point
+     * @param {Number} [config.offset.x]
+     * @param {Number} [config.offset.y]
+     * @param {Boolean} [config.draggable]
+     * @param {Function} [config.dragBoundFunc]

configParams/ShapeParams.txt

@@ -0,0 +1,34 @@
+@param {String} [config.fill] fill color
+     * @param {Image} [config.fillPatternImage] fill pattern image
+     * @param {Number} [config.fillPatternX]
+     * @param {Number} [config.fillPatternY]
+     * @param {Array|Object} [config.fillPatternOffset] array with two elements or object with x and y component
+     * @param {Array|Object} [config.fillPatternScale] array with two elements or object with x and y component
+     * @param {Number} [config.fillPatternRotation]
+     * @param {String} [config.fillPatternRepeat] can be 'repeat', 'repeat-x', 'repeat-y', or 'no-repeat'.  The default is 'no-repeat'
+@param {Array|Object} [config.fillLinearGradientStartPoint] array with two elements or object with x and y component
+     * @param {Array|Object} [config.fillLinearGradientEndPoint] array with two elements or object with x and y component
+     * @param {Array} [config.fillLinearGradientColorStops] array of color stops
+     * @param {Array|Object} [config.fillRadialGradientStartPoint] array with two elements or object with x and y component
+     * @param {Array|Object} [config.fillRadialGradientEndPoint] array with two elements or object with x and y component
+     * @param {Number} [config.fillRadialGradientStartRadius]
+     * @param {Number} [config.fillRadialGradientEndRadius]
+     * @param {Array} [config.fillRadialGradientColorStops] array of color stops
+     * @param {Boolean} [config.fillEnabled] flag which enables or disables the fill.  The default value is true
+     * @param {String} [config.stroke] stroke color
+     * @param {Number} [config.strokeWidth] stroke width
+     * @param {Boolean} [config.strokeEnabled] flag which enables or disables the stroke.  The default value is true
+     * @param {String} [config.lineJoin] can be miter, round, or bevel.  The default
+     *  is miter
+     * @param {String} [config.lineCap] can be butt, round, or sqare.  The default
+     *  is butt
+     * @param {String} [config.shadowColor]
+     * @param {Number} [config.shadowBlur]
+     * @param {Obect} [config.shadowOffset]
+     * @param {Number} [config.shadowOffset.x]
+     * @param {Number} [config.shadowOffset.y]
+     * @param {Number} [config.shadowOpacity] shadow opacity.  Can be any real number
+     *  between 0 and 1
+     * @param {Boolean} [config.shadowEnabled] flag which enables or disables the shadow.  The default value is true
+     * @param {Array} [config.dashArray]
+     * @param {Boolean} [config.dashArrayEnabled] flag which enables or disables the dashArray.  The default value is true