antiqueatlas-5.1.0-fabric

Right now AA does this on the border of unexplored water bodies:

So basically there is no way to know if some coastlines are real coastlines of just the border of unexplored areas.

Maybe it would be better to do something like this:

So basically treat the border between water and unexplored areas the same way as the border between any other terrain and unexplored areas without drawing fake coastlines.

This make a ton of sense. It's just a technical limitation of the way tiles work right now.