Who the hell decided that windows no longer need a border? Clearly someone who never has overlapping windows open at the same time. It's a horror-show of trying to visually figure out where one window ends and the one beneath it begins because, well... white backgrounds look just the same as other white backgrounds. Please, for the love of everyone's bleeding eyes, put the border decorations back. (If I could find out where to change the styling myself it would be done already. But I can't and defaults matter!)