Re: Vervette Fluid Sandbox...

First of all: Welcome to the forum!

And now, both Verve and Vervette use lighting to show the canvas and that's why white looks like it wasn't full white (255,255,255 or 1.0,1.0,1.0). Instead it is multiplied by the light, it's angle and distance to the canvas and, of course, it's color and intensity.
In Vervette you can just turn off the light. In Verve you can achieve the same by setting the ambient color to white and the light color to black, but then you will not have lighting and won't see any bumps in the paint, of course. If you went really wild, you could try and adjust both ambient and light to result in a white canvas, while the paint still shows lighting.
Anyway, what are you trying to do, why do you need this? Because maybe I can help more concretely, if I know what you are after, you know.