Topic: 2026/2/25 Update
Most of our wall sets are double-layer -- they have different walls for the negative and positive sides, so that their corners are at the sides of tiles, instead of in the middle. Today I got single-layer wall sets working in the map editor. This is a start. Double-layer will be more complicated.
February 25, 2026:
Single-layer "Wall Sets" (Anthill, Fortification, Mine) now work.