   }
 
   override public func setHistoryBackgroundColor(color: UIColor) {
-    coverView.backgroundColor = color
+    historyContentView.backgroundColor = color
+    super.setHistoryBackgroundColor(color)
   }
 
   override public func contentView() -> UIView? {

    historyViewController.reload()
    historyViewController.view.alpha = 1.0

    coverView.hidden = false
    historyContentView.hidden = false

    setNavigationBarHidden(true, animated: false)

        self.historyViewController.view.transform = CGAffineTransformIdentity
        self.historyViewController.scrollToIndex(index, animated: false)
        }) { (finished) in
          self.historyContentView.hidden = true
          self.historyViewController.view.alpha = 0.0
          self.setNavigationBarHidden(false, animated: false)
