Thanks but that's not a valid answer for why it was a good UI reason for so many chose to go the blue/white route ad nauseam. My employer ditched a perfectly-fine-working microsoft messenger for Skype which is....blue and light blue and medium blue all over, with white too. Only possible valid reason is that the lemmings followed Apple which followed Microsoft.
Trend/Fad, yes I agree. Awful fad.
Using resource consumption as a valid reason for flat design? Weaker GPU's? Nah, not buying it, respectfully.
Not only have GPU's gotten way faster/efficient than those back in the days of iOS6 & before, but dumbing down the UI for the sake of battery life is wagging the dog. "Good design" concerned a truly good user experience would keep doing what worked and instead stop this thin-thin-thinner fashion-first madness that obviously affects battery capacity. Same thought about blurring the background - how efficient is that for battery life than just dimming the background like before, which also at least left it readable if you needed to look what was behind what your main window/screen.
Speaking of doing something for sake of battery consumption -- something I've always wondered about was whether the current white screen silliness used more, less, or the same battery power as darker/black screens of iOS6 & prior. Can't possibly be that ios7+'s all-white screens use the same or less power as the darker themes of iOS6 & prior, but I could be wrong.
You can freely move on.
I'll keep kicking up dust hoping to affect change and bring back good design 1 day sooner than had I not started this thread.
Never heard back from dropbox. Never received the "thank you for your interest & concern, we'll certainly pass your email on to our design team"....and then onto the virtual shredder.