I’ll see if I can get something working as a proof of concept. Give me a few days. 
Skins? That’s too technical. Does that mean if one finds images one likes, it can be uploaded - like the forum profile picture - to be used as faces for stones and goban? That would be nice. Anything more complicated would be hard for non-programmers.
“not worth replying” was a note to myself left when I deleted the reply I wrote.