Changing your profile picture (avatar)
To change the profile picture shown in Trello, log into your Atlassian account at https://id.atlassian.com/ and then go to https://id.atlassian.com/manage-profile/profile-and-visibility to change your profile picture. Click on the current profile picture to either change or remove the current picture:
Your account's avatar is visible to anyone on the internet, including those that find you through search engines like Google. Trello also supports Gravatar, a site that lets you upload your avatar once and use it on various sites across the internet. Trello will default to using your Gravatar if that is available. Note that WordPress avatars are automatically uploaded through Gravatar.