Stantard version of STL has no material support, but there are non-standard variations on the binary STL format for adding color information (see STL (file format) - Wikipedia).
To be compared with, Three.js has the support of STL vertex color (STLLoader supports the Magics approach but STLExporter does not).
I know STL may not be a good choice if we need vertex color, but some use cases do exist (otherwise there wouldn’t be the variations). I want to check that Babylon.js do not support this, right? And is it possible to add the support? (at least support the loader to compete with Three.js, XD)