I tried to plot the default clormaps provided by GMSH.
colormap 0 is completely black. No point in putting it up here.
colormap 1
colormap 2
colormap 3
colormap 4
colormap 5
colormap 6
colormap 7
colormap 8
colormap 9
colormap 10
colormap 11
colormap 12
colormap 13
colormap 14
colormap 15
colormap 16
colormap 17
colormap 18
colormap 19
colormap 20
colormap 21
colormap 22
colormap 23
