Toggle for larger text

Thanks for developing such a great app. It's the best for offline translations.

Would it be possible to have a button, possibly next to the settings gear icon, to increase the size of the text, a simple toggle small/large. I have my phone set with normal, smallish font size but when showing the translation to others, the text is too small, especially if they need reading glasses. It is even more of an issue in the walkie talkie mode. I realise this mode is designed for sound output but occasionally you can miss a word and might like to read it. Currently I have to adjust the system font size but it would be more convenient to just have a button in the app.

Thanks JD