Can you imagine that this guy posted the latest CM nightly in the og dev subforum? Thread got moved to general pretty quickly since he isn't a CM Team member and the stickied rules state you can't post material you didn't make or for which you don't provide source. lol, "what is this circle thing"
Sorry that the above isn't helpful. I just don't think I'm going to forget the user name "theghazi" for a while.
Anyway, can you comment on what the other posters have said? Is it on your lock screen or in typical usage? You are probably referring to the Google Now shortcut. If you swipe up from a nav button, you can activate Google Now. I don't known what it could be on a lock screen. Could be the unlock threshold. I do to use a lock screen myself so I'm not sure what one even looks like.