If you're a team owner you can upload a picture that'll show next to its name.
To change your team image:
Go to the team you'd like to update the picture for.
Hover over the the team name to select More options
> Manage team
.Note
Manage team is only available to team owners. You must be a team owner to change the team picture.
In the Settings tab, expand Team details and select Change picture
under the existing team picture. Select Upload
to choose a new image from your files, or Remove
to remove the chosen team picture.Select Save to save your new team picture.