0,
            textAlign: 'center',
            fillColor: '#00e15e',
            border: [3, '#00e15e'],
            borderRadius: 25,
            padding: 30,
          });
          bglayer.appendChild(button);

          return button;
        });

      speedupBtn.id = 'speedUp';
      speedupBtn.addEventListener('click', (evt) => {
        fglayer.timeline.playbackRate += 0.2;
      });

      slowdownBtn.addEventListener('click', (evt) => {
        fglayer.timeline.playbackRate -= 0.2;
      });

   