If the pixel shader debugger link is selected by the user, then {HEAD ~ a pixel shader debugger window} is opened to display {TAIL ~ information} regarding the pixel shader used for the selected pixel 
is opened to display
If the pixel shader debugger link is selected by the user , then { HEAD ~ a pixel shader debugger window } is opened to display { TAIL ~ information } regarding the pixel shader used for the selected pixel
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH