I know I purchased them labeled as 'Etain'. I tried to find pics from their first or second year, because they really were more yellow, although the purple edge was much darker/wider than those pictured above. No luck.
Here is yesterday
I put them in when the smokebush-tree in the background was just a baby shrub. There is one on the left with a bit more yellow, but clearly the the progeny of the original has become mostly purple. And this, is just cool throat whiskers