Hello @AlBal2! @TomSvilans did implement texture coordinates at one point, and i commented it out because it was increasing mesh size by ±30%, even when none were present/needed.
Doing things like this:
Gets you this coloured mesh online, and a coloured mesh back out in gh too.
I know texture coordinates is something different, and the RhinoConverter is actually scaffolded to accept this as an option. See L28 for the flag and the mesh conversion implementation here, which takes it into account.
What’s needed is a way to set that option somehow via the UI somewhere…