             for:UIControlState.highlighted)
         buttonBack.imageView!.clipsToBounds = true
         buttonBack.imageView!.contentMode = UIViewContentMode.center
+        buttonBack.imageView!.tintColor = UIColor(white:0, alpha:0.1)
         buttonBack.addTarget(
             self,
             action:#selector(actionBack(sender:)),

        clipsToBounds = true
        backgroundColor = UIColor.white
        translatesAutoresizingMaskIntoConstraints = false
        
        let border:VBorder = VBorder(color:UIColor(white:0, alpha:0.1))
        

        NSLayoutConstraint.equalsHorizontal(
            view:icon,
            toView:self)
        
        NSLayoutConstraint.topToTop(
            view:buttonBack,
            toView:self,
            constant:kContentTop)
        NSLayoutConstraint.bottomToBottom(
            view:buttonBack,
            toView:self)
        NSLayoutConstraint.leftToLeft(
            view:buttonBack,
            toView:self)
        NSLayoutConstraint.width(
            view:buttonBack,
            constant:kBackWidth)
    }
    
    required init?(coder:NSCoder)
