Background mode / "blind" mode
Many people love to consume Twitch on their mobile devices. Often, they're not even watching, they're just listening, i.e. when going for a walk etc. Please add a "blind mode"/"background" mode that only streams audio and that doesn't pause the stream when turning off the screen. That way, the usage of the mobile device charge and data plans would be much more efficient. This would be very good especially for "Just Chatting"-streams. Bonus from the business p.o.v. : You could play specialized adds that work without video.