All tiles are 512x512.

This is the order they are in:

0 = empty tile

1 = North Wall

2 = East Wall

3 = South Wall

4 = West Wall

5 = North & East Walls

6 = East & South Walls

7 = South & West Walls

8 = West & North Walls

9 = West, North, & East Walls

10 = North, East, & South Walls

11 = East, South, & West Walls

12 = South, West, & North Walls

13 = North & South Walls

14 = West & East Walls

15 = North East Corner

16 = South East Corner

17 = South West Corner

18 = North West Corner

19 = Trap (overlay)

20 = Chest (overlay)

21 = Point of Interest (overlay)

22 = Stairs Up (overlay)

23 = Stairs Down (overlay)

24 = Door in North Wall (overlay)

25 = Door in East Wall (overlay)

26 = Door in South Wall (overlay)

27 = Door in West Wall (overlay)

28 = Solid, filled in space.

Messed up slightly, should have swapped "Point of Interest" and "Chest" because the POI should still be visible behind the chest, if you have both in the same tile. Oh well, I can make it up in code.

Just thought I would post this here. I always look for things like this, so I thought someone might think they are useful.