(7 hours ago)Johann Eisner Wrote: Does anyone know what this function is for, or is it still in development?
It's for embedding textures into the mpd itself:
https://www.ldraw.org/article/47.html#meta
If you want to use the image elsewhere in the mpd you will need to create a (also embedded) part containing at least a single textured quad referring to it.
Native background images is something I have looked into multiple times but I couldn't make up my mind on how to implement it.
So in short it's still a planned feature
