fixed intial colorpicker value

dist/preview release/gui/babylon.gui.js

@@ -3045,7 +3045,7 @@ var BABYLON;
             function ColorPicker(name) {
                 var _this = _super.call(this, name) || this;
                 _this.name = name;
-                _this._value = BABYLON.Color3.White();
+                _this._value = BABYLON.Color3.Red();
                 _this._tmpColor = new BABYLON.Color3();
                 _this._pointerStartedOnSquare = false;
                 _this._pointerStartedOnWheel = false;
@@ -3059,6 +3059,7 @@ var BABYLON;
                 // Events
                 _this._pointerIsDown = false;
                 _this.isPointerBlocker = true;
+                _this.value = BABYLON.Color3.White();
                 return _this;
             }
             Object.defineProperty(ColorPicker.prototype, "value", {

gui/src/controls/colorpicker.ts

@@ -6,7 +6,7 @@ module BABYLON.GUI {
     export class ColorPicker extends Control {
         private static _ColorWheelCanvas: HTMLCanvasElement;
         
-        private _value:Color3 = Color3.White();
+        private _value: Color3 = Color3.Red();
         private _tmpColor = new Color3();
 
         private _pointerStartedOnSquare = false;
@@ -48,6 +48,7 @@ module BABYLON.GUI {
             super(name);
 
             this.isPointerBlocker = true;
+            this.value =  Color3.White();
         }
 
         private _updateSquareProps():void {