Subtitles have plenty of customization, however lack a critical option to make them useful without needing any kind of background effect, which obscures much of the screen; Edge Effect Thickness.
Most people are used to a white font with a thick, black, uniform border. Most streaming sites default to this style for a reason. This makes the text readable regardless of what is shown behind it and without needing a large background.
Roku lets you set a close style to this, but lacks the thick border necessary to differentiate each character in a string of text depending on what is showing behind it.
This should be an easy addition/fix. A thicker border (or border option) is all that's really needed, but a thicker font type (preferably all caps, similar to the current "small caps" font) would also be great.
This would go a long way to improving enjoyment and usability for those of us that need or prefer to use captions/subtitles.
Thank you.
Some channel apps already have this level of configuration.
Example: BBCiplayer (UK only channel app, sorry).
Would be good if default subtitle library supported this.
Also better support/encouragment for audio description (extra soundtrack which could be selectively enabled).
And a locked down simple mode which works more like a traditional dumb TV (just live streams, or ability to configure specific box sets to work like a live stream). For people with cognitive difficulties (old and young) that could not cope with full Roku experience.