I've encountered this the other way. I would design something for a customer, and I'd leave it Fusion360's default grey texture. Let's say I'm making a table. The following conversation would take place:

"Why is it grey?"

"That's just the software, I'm gonna make it out of wood."

"I don't want it to be grey, I want it to be wooden."

"I know, I'm going to make it out of wood. What do you think of the shape?"

"I can't see it if it's not wooden."

I honestly don't know you function like that.