     private var establishedNormalBackgroundColor: UIColor = .blackColor()
     private var establishedSelectedBackgroundColor: UIColor = .grey4D()
 
+    private var muteNormalBackgroundColor: UIColor = .redColor()
+    private var muteSelectedBackgroundColor: UIColor = .redColor()
+
     lazy private var followNormalAttributedTitle: NSAttributedString = {
         return self.styleText("+ Follow", color: .blackColor())
     }()

    }

    @IBAction func buttonTouchUpInside(sender: UIButton) {
        handleTapped(sender)
        highlighted = false
    }


            attributedSelectedTitle = noiseSelectedAttributedTitle
            normalBackgroundColor = establishedNormalBackgroundColor
            selectedBackgroundColor = establishedSelectedBackgroundColor
        case .Mute:
            attributedNormalTitle = muteNormalAttributedTitle
            attributedSelectedTitle = muteSelectedAttributedTitle
            normalBackgroundColor = muteNormalBackgroundColor
            selectedBackgroundColor = muteSelectedBackgroundColor
        default:
            attributedNormalTitle = followNormalAttributedTitle
            attributedSelectedTitle = followSelectedAttributedTitle
