color table for accumulated growing degree days

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@39029 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/gis/colors.desc

@@ -11,6 +11,7 @@ differences: differences oriented colors
 elevation: maps relative ranges of raster values to elevation color ramp
 etopo2: colors for ETOPO2 worldwide bathymetry/topography
 evi: enhanced vegetative index colors
+gdd: accumulated growing degree days
 grey: grey scale
 grey1.0: grey scale for raster values between 0.0-1.0
 grey255: grey scale for raster values between 0-255

lib/gis/colors/gdd

@@ -0,0 +1,6 @@
+0 violet
+500 blue
+1000 green
+1500 yellow
+2000 red
+3000 brown