Hey there, thanks for the feedback! Good points. I agree, the captions and restart icons do need some work. Easy fix that I can do pretty quickly.

With regards to the tooltips, currently there are hidden labels which are read out by screen readers. If you view the rendered source, you'll see some spans with "sr-only" classes which contain labels that get read out by the likes of voiceover, etc. An option to show these as tooltips would be a good idea though.

Thanks!