Brave Rewards Icon Notifications

An explanation of what the notification means or represents (red circle w/ number) that is located on brave rewards icon in the url bar. My reason for this request is because I’ve had this notification for a few weeks and no one in community forum or r/brave knows what the notification is for.
I’m hoping that Brave will consider implenting this request so that consumer’s such as myself will have a better understanding of where and what the notification is for.
Thank you for your time.