I had the same results with Treasure x Pink Attraction. Also, had a soft pale blue one show up.
<<No bud count or branching,>>
From: Linda Mann <email@example.com>
Sent: Mon, May 10, 2010 6:00 pm
Subject: [iris-photos] HYB: TB: Ic4 x treasured
Interesting surprise. No bud count or branching, but the flower is
nice. IC4 ("the cream weed"): (IMM x CSONG) X TREASURED.
IC10 ("the other cream weed") gives better form etc in seedlings, but
IC4 sure does turn out more interesting colors & patterns.
Linda Mann east TN USA zone 7