Here is what the normal profile picture in Facebook chat looks like:
But what or why is the little bit of blur showing on the profile picture (not the speech balloon with dots) in this next image?
I'm using the Facebook chat on Windows 7 desktop and it's on the profile picture on the chat icon.
It sometimes happens and sometimes doesn't. I think it started to occur recently over the past week or so.
I'm not sure what they're doing when it happens, but I believe it lasts until the user is done typing.