Object colors in VTK-session cannot be changed
When geometry is assigned a color during import, field data is added to the session's VTK data. This field data overrides any color property set, so it is impossible to change the color.
The SetAttributeBlockColorToEntity
function in smtk/extension/paraview/server/vtkSMTKResourceRepresentation.cxx
should be changed to prefer the property value.