Venice App on IOS font size

The IOS Venice app has come a long way, congratulations. Very usable now. 

There’s just one small - or large - thing. The font type and size for the app is fixed. It can’t be changed, and it may be a good size for some screens at some times but not for all screens at all times…

If you could just put a setting in there to allow choice of font and size it would be a great help! Other not so smart apps can do it so it can’t be too much of a challenge