An array of text style rules to apply to WebVTT subtitles and other legible text.
Mac Catalyst 13.0+Beta
You can use this property to assign an array of AVTextStyleRule objects to control the formatting and presentation of WebVTT subtitles and other legible text.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.