Scaling – MyBible

You can scale all font sizes defined in the current theme using a pinch-to-zoom gesture in the Bible window:

Start a pinch-to-zoom gesture and hold it for about a second to enter the scaling mode.
While scaling with your two fingers, observe the sample text size in the appeared “Scale” sub-menu.
End the gesture to apply the new size. Repeat the gesture to further adjust the size.
Fine-tune the scaling using the percentage entry.
The “Cancel” button on the “Scale” sub-menu restores the scaling as it was before opening the sub-menu.