You will see a preview of captions at the top of the page. By default, captions appear as white text on a black background.
To change the language, select Language and choose from the options.
To alter the size of captions, select Text size and choose from the options that appear.
Now select the Caption style from the options.
Note: we have written these instructions for devices running the standard version of the Android operating system. You may find some minor presentation differences if the manufacturer has customised the theme.