Merge topic '18231-make-change-background-color-advanced' into release

042eaa3f remove lights properties from UI for comparative render view.
7cfb7167 make background color advanced.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Cory Quammen <cory.quammen@kitware.com>
Merge-request: !2741
Status Job ID Name Coverage
  External
pending paraview-ista-osx-static-release+gui+kits+python
pending paraview-luigi-linux-shared-release+gui+mpi+python
pending paraview-megas-linux-release+catalyst
pending paraview-nemesis-windows-shared-release+gui+kits+mpi+python
pending paraview-nemesis-windows-shared-release+gui+mpi
pending paraview-taanab-linux-shared-release+mpi+python
pending paraview-taanab-linux-static-release+mpi+offscreen+osmesa+python
pending paraview-tylo-windows-shared-release+gui+python+python3+tbb
pending paraview-vall-linux-shared-debug+doc+extdeps+gui+mpi+python+python3