Facebook Visual Identity
Do minuscule changes like these actually have any impact with users?  To be honest, I was struggling to notice any difference in many, if not most of the before/after screenshots.  I just can't see a typical user appreciating the change, or even noticing.There's clearly a lot of difference between all the icons, but even then they're all clearly Facebook.  I would almost expect the arbitrary icon changes to confuse users more than the consistent style would benefit them.