What is the purpose of wasting such money unless it would make an aesthetic difference to the passenger? Are they hopeing that such a subtle change would have a positive psychological effect? Are they hoping to save hundreds of thousands of dollars on dark blue paint? Kinda like the time when American (or United, I forget) got rid of olives on salad courses in FC and saved the company a large chunk of cash. That's the stupidest waste of money I've ever seen.