USA TODAY Network journalist Ilana Keller reported seeing a black logo after downloading a Facebook app update on her iPhone, ...

It's just a mistake, people. I f you looked at the Facebook app on your phone today and saw that the colors had changed, ...

An attached screenshot of the poster's home screen shows the Facebook logo sporting a blue "F" on a black tile rather than a white "F" on a blue tile. "Came here to see what others were saying.