The Dangers of the Design Tab
I'm not sure if anyone else has done what I did this morning, but here is my warning.
If you are almost ready to deliver a completed project DON'T TOUCH THE DESIGN TAB. It may look fun and interesting, but its contents will give you a nightmare. I spent the better part of 2 hours (and the remains of my hair) trying to figure out how to repair the reformatting that automatically applies to your entire project when you click on almost anything on this tab. And the hit-and-miss UNDO didn't help. Fortunately I had a backup copy, from which I was able to import a scene and apply it's customized theme... but even that was not graceful and took a bit of trial and error.
My suggestion to the dev team for impending (I wish) release of V.2. At the very least offer a warning that this will have story wide ramifications. Perhaps a preview and reverse option would be nice also.
Anyway, still love Storyline, just a bit wiser and older this afternoon.