@securepaul Yes! I want to know about this.
I went to a talk recently about this hoping to learn something, but their approach felt very corporate open source and was not what I was looking for. 😥
I was looking forward to an interesting analysis of what barriers keep designers from contributing to open source, but the talk was basically "give them recognition and merch!". I'm sure many people around here will have far more deeply considered answers than that!