Roku App enhancement, adding Mute "Volume" settings with "Captions on Mute" option
As one totally ignorant of the capabilities offered by Roku to App developers, this suggested improvement may be impossible but I believe it adds value to your product; assuming of course Roku provides the access needed to developers.
Add a "Mute" option to the "Volume" settings of "High," "Medium," "Low" which would stop the audio output..
With the addition of a "Mute" Volume option, add "On Mute" option to the closed "Closed captioning" choice list.
Just a thought.