{HEAD ~ The transparent portions} of {TAIL ~ the display bar} 16 would reveal the color key while also revealing the BC or NBC indicator 
of
{ HEAD ~ The transparent portions } of { TAIL ~ the display bar } 16 would reveal the color key while also revealing the BC or NBC indicator
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH