Contour plots with relative and absolute spacing in ParaView - Tutorial - Part 3

Part 3 of a tutorial series on how to use the free software ParaView 5.8.0 for the visualisation of 3D surface models for scientific publications, using fossil footprints as examples. This series is supplementing our upcoming methodological paper in the Journal of Paleontological Techniques, where the viewer may find in depth background information.
Content of Part 2:
* Contour plots with fixed number of contours
* Contour plots with fixed spacing between contours
* Contour plots with each x-th contour highlighted