set terminal pngcairo size 3520, 656 set output 'tmp/'.plotname.'.png' set palette defined (0 "dark-green", 0.5 "dark-green", 0.5 "yellow", 1.5 "yellow", 1.5 "red", 2 "red") set datafile separator ',' set size 1,1 set margin 0,0,0,0 set yrange [0:4.1] set xrange [0:22] set cbrange [0:2] unset colorbox unset key unset tics unset border