COLORMAP
NAME=jet (20% white band)
SPACE=RGB
0.0000   0   0 128
0.1000   0   0 255
0.4000   0 255 255
0.4000 255 255 255
0.6000 255 255 255
0.6000 255 255   0
0.9000 255   0   0
1.0000 128   0   0