Won't currently error for these other 2 usages because only field item Tulips were out of range, but maybe on patch 1.20 :)
Centralize the logic for out of range handling
980KB -> 12KB when compressed, seems legit
just an array of tile definitions (32x32 style), sequential acres (undefined acres are all zeroed)
tiles aren't displated as granular as possible, only sets as 16x16 tiles instead of larger 32x32, but it should be a good enough color hint to people for editing
big thanks to ninji for the color mapping in his disassembly and the pbc->tile parse