Set Video Subtitle and Captions Style

If you use subtitles or captions under videos, you can set the style in most cases using a setting in System Preferences, Accessibility, Captions. You can choose from four styles: Transparent Background, Classic, Large Text or Outline. This works in iTunes and the new Catalina TV app and other places like QuickTime Player, provided the video you are watching has a subtitles or captions track.