case EL_SP_TERMINAL_ACTIVE: return GFX_SP_TERMINAL;
case EL_SP_BUG_ACTIVE: return GFX_SP_BUG_ACTIVE;
case EL_INVISIBLE_STEEL: return GFX_INVISIBLE_STEEL;
case EL_SP_TERMINAL_ACTIVE: return GFX_SP_TERMINAL;
case EL_SP_BUG_ACTIVE: return GFX_SP_BUG_ACTIVE;
case EL_INVISIBLE_STEEL: return GFX_INVISIBLE_STEEL;