         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()
        }

    lazy var togglePrivateMode: UIButton = {
        let button = UIButton()
        button.setTitle(Strings.Private, forState: .Normal)
        button.setTitleColor(UIColor.blackColor(), forState: .Normal)
        button.titleLabel!.font = UIFont.systemFontOfSize(button.titleLabel!.font.pointSize + 2)
        button.contentEdgeInsets = UIEdgeInsetsMake(0, 4 /* left */, 0, 4 /* right */)
        button.layer.cornerRadius = 4.0
        button.addTarget(self, action: #selector(TabTrayController.SELdidTogglePrivateMode), forControlEvents: .TouchUpInside)
        button.accessibilityLabel = PrivateModeStrings.toggleAccessibilityLabel
        button.accessibilityHint = PrivateModeStrings.toggleAccessibilityHint
        button.accessibilityIdentifier = "TabTrayController.togglePrivateMode"

        return button
    }()

