Different Page Background Colors for DataFLOW page and DataSET pages

Canioagain

Yes, I know I should know when I'm in a DataFLOW page vs. the DataSET page. But I don't. And it's confusing. Change the background page color when I'm on each so visually I don't have to look around to see where I'm at. Doesn't have to be bright crazy colors. Wouldn't that be helpful?