I have a Sony Android TV and have an issue with the Amazon Prime Video app I was wondering if other users had.
I cannot get the TV to give a background to any subtitle style. I've tried configuring a custom style but neither the default nor my custom style have the requested transparent black background. Is this just a bug in their android app or is it my TV specifically the app doesn't like?
I think you can only really change the style of subtitles through the browser on desktop (maybe mobile) https://www.primevideo.com/settings/subtitles/ref=atv_set_subtitles
You customize it the way you like, save it and the style will appear in all your devices.