Method of calculating the centre cell in ScalingCarousel

ScalingCarouselView_CenterCell.swift

 func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
        
        var centerCell: UICollectionViewCell? = nil
        
        // Get cell being displayed in the center of the screen
        // Do this by getting the cell that is fully visible
        for cell in scalingCarousel.visibleCells {
            let cellRect = scalingCarousel.convert(cell.frame, to: nil)
          
            // Get the cell that is fully visible, this will have an origin x value between 30 and 70
            if cellRect.origin.x > 30 && cellRect.origin.x < 70 {
                centerCell = cell
            }
        }
   }