I quess you mean this?
Round/Circle Avatar Pictures.
but found alternative to that
Online Status Avatar
MyBB
Custom Online Status
Submitted by Brennan, 05-03-2016, 08:34 PM, Thread ID: 19121
Thread Closed
RE: Custom Online Status 04-01-2020, 12:03 AM #12
04-01-2020, 12:03 AM
#12