Half-life texture prefixes

{ : Transparent
! : Water (a special texture that acts like water, but doesn't need an entity brush to work)
~ : Light (Textures begining with this will emit light)
+ : Animated (Means it actually functions through a set when triggered)
+A : Animated Toggle (cycles through Max 10 frames)
- : Random Tiling (there will be 3 or 4 in a set)