Hey!, not sure how difficult, however it would be really great to have some additional materials to build from in the PBR view.
For now it appears to be a standard rough/metal material. However being able to do skin/wax with subsurface would be really great. Also a true emissing material would be nice. For now i can somewhat get the “light” material by darkening everything, then using a flat color and bumping the constrast + bloom. but doesnt always work 100%.