>>36928779That screenshot's pretty out of date. By now the whole Kanto+Johto overworld has been mapped, making use of 256-tile sets with per-block attributes (meaning blocks can X+Y flip their tiles like Gen 3).
The attached pic is up-to-date. You can download complete map images (~1 MB per region):
https://github.com/TheFakeMateo/RedPlusPlus/tree/master/notes/map%20stitches>>369301624.0 is very much in alpha, and not playable unless you just want to wander around an empty overworld. The indoor maps are mostly left over from Polished Crystal, and scripts are only done up to Pewter City. Part of the delay is that Polished Map doesn't support the new tile-attribute system yet.