+ Toolkit::ImageView mBacking; ///< Backing image
+ Toolkit::ImageView mHandle; ///< Slider handle
+ Toolkit::ImageView mProgress; ///< Progress backing
+ Toolkit::ImageView mPopup; ///< Popup backing
+ Toolkit::ImageView mPopupArrow; ///< Popup arrow backing
+
+ Toolkit::TextLabel mValueTextLabel; //< The text value in popup
+ Toolkit::TextLabel mHandleValueTextLabel; ///< The text value on handle