To me, this UI style of "highlighting" an option signals that "this option does something significant". This is evident in most confirmation dialogs, as it shou

To me, this UI style of "highlighting" an option signals that "this option does something significant". This is evident in most confirmation dialogs, as it should be. Most naggy popups seem to drive users into clicking that highlighted option, and I think this has trained me to consider the dull-coloured choices first. Microsoft's move intends to confuse users, at least by subverting the usual expectations around privacy nagging.