Colormap for qim3d.viz.vol

See https://www.notion.so/qim-dtu/Colormap-for-qim3d-viz-vol-123bab83b2f980369353d0e473c961a0

requested review from @fima

assigned to @s214743

added 1 commit

• e6ddbc85 - Changed parameter name and behavior

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approved this merge request

merged

mentioned in commit 561d367b