/usr/share/gmt/cpt/red2green.cpt is in gmt-common 5.3.1+dfsg-2.
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1 2 3 4 5 6 7 8 9 10 11 12 | # $Id: red2green.cpt 16562 2016-06-18 04:04:08Z pwessel $
#
# Like POLAR, but red to green instead
# Designed by P. Wessel, SOEST
#
#----------------------------------------------------------
# COLOR_MODEL = RGB
# HINGE = 0
#----------------------------------------------------------
-1 red 0 white
0 white 1 green
#----------------------------------------------------------
|