I drew my little “logo” myself. I write like that when I am in meetings with people and it is symbolic for:

what is the issue / challenge we need to work on
what are the other thoughts so that we can
complete the articulation of the issue
we both agree that we have articulated the issue
as best as possible
ideas for a solution
we have arrived at a solution and close the issue
(for now)
there is always a future, and we may need to come
back to this issue / challenge at a later point of time
again as circumstances have changed.