[BUILD] Render colors?

[anja-sheppard]

Hi OpenVDB team--

Apologies if this question represents a misunderstanding of the full capabilities of OpenVDB, but I'm looking to render a level set volume with colors. Is it a possibility to add a "color" attribute to each point added to the volume and then see those colors in the rendering? This would be an incredibly useful functionality but I have not been able to find clear documentation on how to do this.