The same seed and settings always produce the same village.
Form
In Cornath every village shelters inside a ruin. Open drops the shell and gives the settlement fields, water and woodland instead.
Drives how much housing the plan has to find room for.
Institutions
Each type wants different ground — the crypt is scored away from the centre, the stables toward a gate, the general store onto the busiest frontage.
Buildings
Foundry stands the authored stamps on the map as Tiles. Drawn is the procedural fallback, fitted to whatever plot it was given.
Palette
Repaints everything the map draws. The authored stamps carry their own colour, so they keep it — switch to Drawn to see the whole map in one palette.