ref: d5a39e4b679e7cc6fdd7f5d98dde7e8d20ad669c dir: /constants/gfx_constants.asm/
LEN_2BPP_TILE EQU 16 LEN_1BPP_TILE EQU 8 TILES_PER_FRAME EQU 6 TILESIZE EQU $10