         static let imageSize = CGSize(width: 30.0, height: 30.0)
         static let labelPadding: CGFloat = 4.0
         static let labelTopPadding: CGFloat = 6.0
+        static let shrunkenImageScale: CGFloat = 0.9
     }
     
     // MARK: Properties

            imageView.contentMode = newValue
        } get {
            return imageView.contentMode
        }
    }
    

        label.text = item.title
        imageView.image = item.image
    }
    
    public override func update(for selectionState: TMBarButton.SelectionState) {
        super.update(for: selectionState)
        
        if shrinksImageWhenUnselected {
            let interpolatedScale = 1.0 - ((1.0 - selectionState.rawValue) * (1.0 - Defaults.shrunkenImageScale))
            imageView.transform = CGAffineTransform(scaleX: interpolatedScale, y: interpolatedScale)
        }
    }
}
