It would be nice if the Day/Night Mode actually worked.

In the meantime:

iPad Settings --> Accessibility --> Per-App Settings (at the bottom) --> Add App (Add Mission+) --> Mission+ --> Smart Invert --> On

Mission+ will now change from Dark to Light with your overall iPad Display and Brightness toggle. I think a lot of complaints would disappear if pilots used the Light Mode.

Now if only "All Alternates" displayed all of the alternates.