Did you noticed that our pictures in FB and others are circular format? I have beautiful explanation from the inside of Facebook (autotranslated): “Initially, round-up avatars were made in Messenger, because it more suited to the rounded message bubble (the block in which the message text is placed).
After, in the form of an experiment, we decided to try to make comments in the FB in the form of a chat. In a chat, people write a lot of messages for a long time without thinking, and in public comments there is a threshold. We wanted to reduce it by redesign in the style of a messenger. So came round av pic.
Later it was decided for users so it will be easier: all that in the circle is the user’s photo and when clicked his profile will open. All that a small square is a preview of the photo and when the click opens a large photo.
Facebook is rolling out a slight redesign to the News Feed today, which overhauls the main interface of the site for a cleaner look. What that actually translates to in practical terms is getting rid of the blue accents and headers across most of the interface, which the company claims will make navigating easier and more consistent.
The other big change is that comment threads on posts are getting a new design to make them look more like message conversations — specifically, Facebook Messenger conversations. So instead of comments being broken up by simple line breaks, each comment now gets its own gray message bubble, with the goal of making it easier to track who is replying in a given thread.
Lastly, profile pictures will be taking a page from Twitter’s book and shifting from squares to circles, and icons, Like, comment, and share buttons are getting new, simpler and larger designs to be easier to tap on a touchscreen.