switch (FEAT_ROADVEHS, SELF, mk3_open_cargo_switch, cargo_classes & BITMASK(CC_LIQUID, CC_BULK)) {   //switch for reducing capacity for some cargos
        BITMASK(CC_LIQUID): return 10; //barrels hold less than tanker
        BITMASK(CC_BULK): return 7; //can't fill bed with as much bulk as a hopper
        default: return CB_FAILED;
}


graphics {
        PAPR:       spritegroup_mki_t_open_paper;
        STEL:       spritegroup_mki_t_open_steel;
    METL:       spritegroup_mki_t_open_steel;
        SCMT:       spritegroup_mki_t_open_scrap;
        RCYC:       spritegroup_mki_t_open_scrap;
        COPR:       spritegroup_mki_t_open_copper;
        FOOD:       spritegroup_mki_t_open_food;
        FISH:       spritegroup_mki_t_open_food;
        FRUT:       spritegroup_mki_t_open_fruit;
    IORE:       spritegroup_mki_t_open_ore;
    AORE:       spritegroup_mki_t_open_ore;
    COAL:       spritegroup_mki_t_open_coal;
    COKE:       spritegroup_mki_t_open_coal;
    CORE:       spritegroup_mki_t_open_ore;
        LVST:       spritegroup_mki_t_open_sheep;
    CC_LIQUID:  spritegroup_mki_t_open_drum;
    cargo_capacity: mk3_open_cargo_switch;
        default:    spritegroup_mki_t_open; // Default to crates
}