         adjustTabItemLabel.isHidden = options.tabView.style == .segmented
         adjustTabItemSegmentedControl.isHidden = options.tabView.style == .segmented
 
-        tabItemViewWidthLabel.isHidden = options.tabView.isAdjustItemViewWidth || options.tabView.style == .segmented
-        tabItemViewWidthSlider.isHidden = options.tabView.isAdjustItemViewWidth || options.tabView.style == .segmented
+        tabItemViewWidthLabel.isHidden = options.tabView.needsAdjustItemViewWidth || options.tabView.style == .segmented
+        tabItemViewWidthSlider.isHidden = options.tabView.needsAdjustItemViewWidth || options.tabView.style == .segmented
 
         tabItemViewWidthSlider.value = Float(options.tabView.itemView.width)
         tabItemViewWidthLabel.text = "Tab Item Width: \(String(format: "%.0f", Float(options.tabView.itemView.width)))"

            dataCountStepper.maximumValue = 4
        }

        if options.tabView.isAdjustItemViewWidth {
            adjustTabItemSegmentedControl.selectedSegmentIndex = 0
        } else {
            adjustTabItemSegmentedControl.selectedSegmentIndex = 1

        adjustTabItemLabel.isHidden = options.tabView.style == .segmented
        adjustTabItemSegmentedControl.isHidden = options.tabView.style == .segmented

        tabItemViewWidthLabel.isHidden = options.tabView.needsAdjustItemViewWidth || options.tabView.style == .segmented
        tabItemViewWidthSlider.isHidden = options.tabView.needsAdjustItemViewWidth || options.tabView.style == .segmented
    }

    @IBAction func changeAdjustTabItemWidthEnabled(_ sender: UISegmentedControl) {

        switch sender.selectedSegmentIndex {
        case 0:
            options.tabView.needsAdjustItemViewWidth = true
        case 1:
            options.tabView.needsAdjustItemViewWidth = false
        default:
            break
        }

        tabItemViewWidthLabel.isHidden = options.tabView.needsAdjustItemViewWidth || options.tabView.style == .segmented
        tabItemViewWidthSlider.isHidden = options.tabView.needsAdjustItemViewWidth || options.tabView.style == .segmented
    }

    @IBAction func changeTabItemWidthSlider(_ sender: UISlider) {
