Looks nice.
Yeah, colering could be a nice alternative. For me an "alternative" if any other ways are impossible. Do you have an simple example / tutorial for netgen?
I'm not sure if you are knowing About the complex the step specification. … in short, the specifiaction allows a Definition of simple Geometrie in many ways. The specification tells us, a good importer / Reader should support all forms of Definition of an object … but at the real world the cad Systems only supports a few ways and each Software are cooking its own …
Monday i will upload a few examples with my actuall cad Software (SolidWorks). I also worked with Unigraphics / Siemens NX really instensiv + programming and can tell you, its allso possible to Name surfaces and Export the names into the step file. For Catia + Pro/E I can not 100% tell you if the exporter also includes the names of surfaces.
So, let us see if we can use the names in step files of solid works in netgen. Perhaps we can deploy an Workaround. Only one Problem of my side is that I do know Nothing About netgen at the Moment