 
         let imageContentView = UIView()
         imageContentView.backgroundColor = .clear
-        imageContentView.addSubviewAndConstrain(albumImageView)
+        imageContentView.addSubviewAndConstrain(toMarginsGuide: true, albumImageView)
 
         // 3. setup the buttons and controls
         playbackButton = createButton(
-            systemName: "play.fill", action: #selector(didTapPlaybackButton), style: .title1)
+            systemName: "play.fill", action: #selector(didTapPlaybackButton), style: .largeTitle)
         let previousButton = createButton(
-            systemName: "backward.fill", action: #selector(didTapPreviousButton), style: .title1)
+            systemName: "backward.fill", action: #selector(didTapPreviousButton), style: .title2)
         let nextButton = createButton(
-            systemName: "forward.fill", action: #selector(didTapNextButton), style: .title1)
+            systemName: "forward.fill", action: #selector(didTapNextButton), style: .title2)
         let libraryButton = createButton(
             systemName: "music.note", action: #selector(didTapLibraryButton), style: .body)
         let cloudButton = createButton(

        ])
        controlContentView.distribution = .fillEqually
        controlContentView.alignment = .center
        controlContentView.spacing = 32
        controlContentView.axis = .horizontal

        let optionsContentView = UIStackView(arrangedSubviews: [

            ? UIImage(systemName: "pause.fill")
            : UIImage(systemName: "play.fill")
        playbackButton.setImage(image, for: .normal)
        // update the constraints for the album art
        guard let contentView = albumImageView.superview else { return }
        let padding: CGFloat = !isPlaying ? 12 : 0
        let insets = UIEdgeInsets(top: padding, left: padding, bottom: padding, right: padding)
        contentView.layoutMargins = insets
        UIView.animate(
            withDuration: 0.8,
            delay: 0,
            usingSpringWithDamping: 0.7,
            initialSpringVelocity: 0.8,
            options: .beginFromCurrentState,
            animations: contentView.layoutIfNeeded,
            completion: nil)
    }

    func updateTrackInfo(with trackInfo: TrackInfo) {
