         updateTopDotsRadii(to: radiusNormal, at: CGPoint(x: frame.midX, y: topDotsY))
         
         // Progressively fade the inner dot when it gets tiny.
-        innerDotShapeLayer.opacity = easeInOutQuart(number: Float(radiusNormal))
+        topInnerDotShapeLayer.opacity = easeInOutQuart(number: Float(radiusNormal))
         
         lastDotRadiusNormal = radiusNormal
     }
     
     private func updateTopDotsRadii(to radiusNormal: CGFloat, at center: CGPoint){
-        outerDotShapeLayer.updateDotRadius(dotRadius * max(radiusNormal, dotMinRadiusNormal), center: center)
-        innerDotShapeLayer.updateDotRadius(dotRadius * max((radiusNormal - dotMinRadiusNormal), 0.0), center: center)
+        topOuterDotShapeLayer.updateDotRadius(dotRadius * max(radiusNormal, dotMinRadiusNormal), center: center)
+        topInnerDotShapeLayer.updateDotRadius(dotRadius * max((radiusNormal - dotMinRadiusNormal), 0.0), center: center)
     }
     
     private func easeInOutQuart(number:Float) -> Float {

        return shape
    }()

    private lazy var outerDotShapeLayer: CAShapeLayer = {
        let shape = CAShapeLayer()
        shape.fillColor = UIColor.white.cgColor
        shape.strokeColor = UIColor.wmf_blue.cgColor

        return shape
    }()

    private lazy var topInnerDotShapeLayer: CAShapeLayer = {
        let shape = CAShapeLayer()
        shape.fillColor = UIColor.wmf_blue.cgColor
        shape.strokeColor = UIColor.wmf_blue.cgColor
