And I believe there are a lot more out there, I just found this one from Stardoll's Youtube Account and I think it's much easier to understand, although the truth is I am sooo lazy to search for others haha :)
Anyway I love love love this new feature, it's much more realistic than the wigs one, and also the fact that there are not a lot of good black-haired wigs that match my personal taste has made me appreciate this feature more. I haven't tried this feature yet, but it looks sooo cool!
Can't wait to see what others will come up with this new feature. So by that, I wish you dollies happy designing :)