16x16 DungeonTileset Tweaked

These are tweaked versions of 0x72's 16x16 DungeonTileset II, released under CC0 (free for any purpose).

The tiles have been arranged as 3x3 (minimal) tilesets for use with an auto-tiling algorithm.  The tiles match the layout shown in the generic template in the Godot Autotile Docs, though I haven't actually tested them with Godot.

• dungeon-tileset-ii-autotile-square.png - autotile set with square corners
• dungeon-tileset-ii-autotile-round.png - autotile set with rounded corners
• dungeon-tileset-ii-autotile-round-dark.png - autotile set with rounded corners & darker walls

This is almost entirely the work of others, who kindly made their work available for free:
 - https://0x72.itch.io/dungeontileset-ii
 - https://nijikokun.itch.io/dungeontileset-ii-extended
 - https://safwyl.itch.io/16x16-dungeon-autotile-remix
 - https://aekae13.itch.io/16x16-dungeon-walls-reconfig