Was just about to make a thread asking how to do this and found this one, and your reply.
First, THANK YOU to the team that added the new UIStroke instance. It is amazing.
I am struggling to find out how to apply this to Rich text. Per Rototally above, they should be compatible, but I am finding that enabling Rich Text disables the UIStroke. Is there some workaround? My end goal is text that is larger than 100 pt, but includes the thicker stroke.