Detecting font size setting on a phone

I have had a report from a user that some of my text is overflowing from the nice backgrounds I have in my app.

I have done some experimenting and suspect this is because they have adjusted their default font size on their phone.

What I need to do is increase some padding if they have moved the font size from the default. But I´m not sure how I can do that - I don´t see a variable that I can read, and I really don´t want to make it a complicated user question for them to decide a setting.

Has anyone got any ideas on how to get around this?

I´m wondering if anyone knows of a way to read the current setting from a phone?