I was trying to get radio buttons in an app's setup page. And I thought that maybe list would be ok as stated in the documentation.
list: Displays values from a comma-separated list, allowing the user to select a single value.
From this, we can tell that it must be shown as a dropdown when the setup page is loaded. But I tried to populate it using a comma separated string but that didn't work and it was rendered as text input.
There's also no explanation in the documentation on how to populate it and now I don't know if it even works or not. Also want to reference the same question from 2013 here: link