{TAIL ~ The second parameter} is the difference in {HEAD ~ “chroma}” which is the difference in “strong versus weak color.” 
{ TAIL ~ The second parameter } is the difference in { HEAD ~ “ chroma } ” which is the difference in “ strong versus weak color . ”
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH