Change color of selectedRow in UIPickerView, also when rolling

I have to change the color of the selected row in a UIPickerView.

I did managed to change the color, i know that the question already have several replies, anyway those do not satisfy me: with those implementation, the animation of the pickerview is glitchy and i don't like it.

This is the code of the current solution

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {

    var label: UILabel
    if view == nil {
      label = UILabel()
    } else if view is UILabel {
      label = view as! UILabel
    } else {
      label = UILabel()
    }

    let title: NSAttributedString
    if self.model?.selectedValue == row {
      title = UIPickerView.attributedString(with: .selectedRow, text: "\(model?.years[row] ?? 0)")
    } else {
      title = UIPickerView.attributedString(with: .unselectedRow, text: "\(model?.years[row] ?? 0)")
    }

    label.attributedText = title
    return label
}

And when the user scrolls, I reload the components.

But as you can see in the images below, when a user scroll, the green field moves and there is a fraction of seconds in which the green label is below the selector indicator and the selected row is black.

What I'd like to have is that everything inside the selector indicator is green while what outside keeps the default shades of grey.

How can I implement this?