Speaking of the "color changer" daylilies, I just discovered that Liz Salter's little CIRCLE OF WHIMSY is also a color changer. Here is her description:
"round and full, mixture of cream, lavender, mauve and grape with a pale white eyezone that has the barest hint of lavender, small yellow green heart; colors fade and change color over the length of the day, well branched"
I have four pictures of it in the database that you almost would not believe are from the same cultivar -- love it!