Twitter has dropped its default 'egg' image, because it's become associated with harassment and abuse.
The change comes only a day after the social media site shook up the way its replies and notifications work.
"We've noticed patterns of behaviour with accounts that are created only to harass others - often they don't take the time to personalize their accounts," the company's design team wrote in a blog post.
"This has created an association between the default egg profile photo and negative behaviour, which isn't fair to people who are still new to Twitter and haven't yet personalised their profile photo."
Trolls recently launched an attack on singer Lily Allen. Many had a picture of Pepe the frog, a symbol used by racists and troublemakers online, while others had the default egg symbol.
Twitter recently introduced tools to allow users to block any other user with a default picture.
The new default logo is meant to look gender-neutral, and not too masculine, to deter trolls. Twitter initially settled on a head-and-shoulders image similar to those used on toilet doors, but decided it still looked too manly.
"We felt that the circle of the head in the figure still seemed masculine, even though it technically had no design characteristics to indicate that it was a man."
Once Twitter had decided on a design, the company decided to make it as colourless and bland as possible to encourage users to upload their own image, and give "less prominence to accounts with a default profile photo".
Twitter users reacted negatively, saying the change would do nothing to curb the abusive behaviour that has plagued the site.