     struct Constants {
         static let overflowExpandedUserDefaultsKey = "AztecFormatBarOverflowExpandedKey"
         static let fixedSeparatorMidPointPaddingX = CGFloat(5)
-        static let fixedStackViewInsets = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
-        static let scrollableStackViewInsets = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
         static let stackViewCompactSpacing = CGFloat(0)
         static let stackViewRegularSpacing = CGFloat(0)
         static let stackButtonWidth = CGFloat(44)

        ])

        NSLayoutConstraint.activate([
            scrollView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: insets.left),
            scrollView.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -1 * insets.right),
            scrollView.topAnchor.constraint(equalTo: topAnchor),
            scrollView.bottomAnchor.constraint(equalTo: bottomAnchor)
        ])

        scrollView.delegate = self

        // Add padding at the end to account for overflow button
        let layoutDirection = UIView.userInterfaceLayoutDirection(for: semanticContentAttribute)
        switch layoutDirection {
        case .leftToRight:
            scrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: Constants.stackButtonWidth)
        case .rightToLeft:
            scrollView.contentInset = UIEdgeInsets(top: 0, left: Constants.stackButtonWidth, bottom: 0, right: 0)
        }
    }


    /// Sets up the Constraints
    ///
    func configureConstraints() {
        let overflowTrailingConstraint = overflowToggleItem.trailingAnchor.constraint(equalTo: trailingAnchor)
        overflowTrailingConstraint.priority = UILayoutPriorityDefaultLow

