Map Tile types/codes format 0.4.1:

0001 grass
0002 mud
0003 sand
0004 rocky/cave floor
0012 grass/mud
0021 mud/grass
0013 grass/sand
0031 sand/grass
0100 tree1
0101 tree2
0102 tree3
0200 mountain 
0201 mountain/grass
0210 grass/mountain
0300 water

special
0500 pit covered 
0501 pit uncovered
0600 tile with charm
0701 transport tile 1
0702 transport tile 2
0800 small treasure in grass
0801 med treasure in grass
0802 large treasure in grass
0803 copper coins
0804 silver coins
0805 gold coins

0807 pile of lumber

0810 hatchet

0900 market tent NW
0901 market tent NE
0902 market tent SW
0903 market tent SE