FYI, It was the color depth on my VNC service.
this is what fixed it:
vncserver -geometry 1920x1200 -depth 24
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> > On my linux system, view surface controller
> does not open the right window pane with the color
> controls. On my mac, it does.
>
> I updated the binaries. I can now view the right
> Dset Mapping window pane, with the Cmp pulldown
> with a lot of color scales.
>
> But, gray02 shows as purple and beige.
> red_monochrome is blue and blue_monochrome is
> redish-orange. And my stats voxels are still
> opposite colors.
>
> Can you advise?
>
> Thanks, Peter