Your organization can have an avatar configured, such as your corporate logo or organization branding. These avatars are used in various places throughout the system to provide a visual context in presentation, including the top menu plan selector and the Settings page.
To set your organization icon:
Select the Organization Profile tab.
Near the bottom, you’ll see a place upload an image to use as your organization image.
Save the image after it has been uploaded
After setting the organization image, you should now see your icon showing up in places throughout Fulcrum.
See also how to add an icon for your user profile.
If you're feeling zesty, you can also make your icon a GIF! It will play on the web app, but not on the mobile app.