Groups Get a Trailhead Makeover
Groups are looking a lot like Trailhead with a new default banner
image and avatar. This change applies to Lightning Experience only.
The new default banner image for Groups helps get your users in the Trailhead spirit. Of course, group owners can still change it to whatever they want.
Your group page doesn’t have a photo yet? Astro and Codey to the rescue! They graciously bask in the spotlight as the default group avatar while you round up your own photo.