C an b e se l e cte d on l y w h e n th e H i g h li g h t Z on e fu n cti o n i s o n . Wh e n se l e cte d , a me n u w in d o w a p p ea r s w h ic h ca n b e u s e d to a d ju s t C on tr as t
an d S h ar p ne s s w i th in th e H i g h li g h t Z on e .
Afte r c ha n g i ng th e se tti ng , s el e ct O K to sa v e th e c ha n g e s, o r C a n c el to re tu rn to th e p re vi o u s s etti n g .