iRogue-RGB
@ 009900  (anything after the 6-digit number is ignored!!) this makes @s green.
- 0000FF  this makes some walls bright blue
| 0000ff  this makes the other walls bright blue.  Upper or lower case F's.
# 660000  Tunnels will be some dark kind of red color.
: 990099  Food will be purple (or draw the food symbol instead if you know how)
B 006699  I forget what monster is B but it will be blue-green
f 666666  mix all the finger paints together and get gray..