Why is the Facebook app logo black? Some users report color change USA TODAYWhy is the Facebook icon black? Social media users have some theories for widespread issue Asbury Park PressFacebook’s icon mysteriously changes black overnight leaving users baffled and asking ‘what’s wrong’ with t… The SunFacebook users left confused after app icon mysteriously changes colors to black NorthJersey.comFacebook’s Mysterious Black Icon Leaves Users Confused: What Happened Last Night? Tech Times