! pplus tics bug - pre 5.42, fill plots overlaid interior tics.

use coads_climatology
ppl tics 0.,.35,0.,.35,0,0

set view upper
shade/l=1/x=150e:110w/y=40s:40n sst
 
set view lower
fill/l=1/x=150e:110w/y=40s:40n sst

ppl tics,,.25,,.25,-1,-1
