         addTabButton.addTarget(self, action: #selector(TabTrayController.SELdidClickAddTab), forControlEvents: .TouchUpInside)
         addTabButton.accessibilityLabel = Strings.Add_Tab
         addTabButton.accessibilityIdentifier = "TabTrayController.addTabButton"
-        addTabButton.tintColor = UIColor.whiteColor() // makes it stand out more
 
         let flowLayout = TabTrayCollectionViewLayout()
         collectionView = UICollectionView(frame: view.frame, collectionViewLayout: flowLayout)


    private(set) internal var privateMode: Bool = false {
        didSet {
            togglePrivateMode.selected = privateMode
            togglePrivateMode.accessibilityValue = privateMode ? PrivateModeStrings.toggleAccessibilityValueOn : PrivateModeStrings.toggleAccessibilityValueOff
            tabDataSource.updateData()
            collectionView?.reloadData()
        }

            make.edges.equalTo(self.view)
        }

        // Make sure buttons are all setup before this, to allow
        // privateMode setter to setup final visuals
        let selectedTabIsPrivate = tabManager.selectedTab?.isPrivate ?? false
        privateMode = PrivateBrowsing.singleton.isOn || selectedTabIsPrivate

        NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(TabTrayController.SELappWillResignActiveNotification), name: UIApplicationWillResignActiveNotification, object: nil)
        NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(TabTrayController.SELappDidBecomeActiveNotification), name: UIApplicationDidBecomeActiveNotification, object: nil)
