Magnify all maps < 100% (e.g. 50%)
I'm considering using Onyx Boox Nova 3 Color for navigation because it has a color e-ink display which is much better visible in sunlight than LCD. However, it has a very low resolution in color: 468 × 624, which is like a 200% zoom on a normal tablet.
So I think it could be useful to allow values less than 100% in the "Magnify all maps" feature, e.g. 50%. It's different than using a smaller zoom because all the details (like smaller paths), albeit blurred, would still be visible.