How do I change the background color in VRAY Sketchup?

Why does V-Ray render white?

If not, the only cause I know of in VRay for blank white renders is if you forget to add the VRay Attributes to your camera, when using the physical sun (Select Camera Shape node (make sure it’s the shape node, not transform node), Attribute Editor -> Attributes -> V-Ray -> Physical Camera, then scroll to the bottom …