These options are for people who follow the service by reading it. They change only how the text looks on that phone. The broadcast is not affected.
- Text size: Normal, Large or Extra large.
- High contrast: older lines stay as bright as the newest one, and the text is bolder.
- Text only: hides the sound wave and the timer, so the text has the whole screen.
- Keep screen awake: the phone does not go dark while you read.
The choices are remembered on that device. A dot on the icon shows that something has been changed.
Good to know: The text is generated automatically and may contain errors. Some browsers do not allow keeping the screen awake; the menu says so if yours refuses.