Not sure. Image search comes up empty. What happens when you click on it?
Nothing -- it's greyed-out.
Update: I tried shutting down my computer, but the computer assisted me by crashing "because of an error." Now that I'm booted up again, the icon has disappeared. But before I shut down, it looked like LibreOffice was querying me if I wanted to perform a software update. Maybe it had something to do with that?
Nothing -- it's greyed-out.
Update: I tried shutting down my computer, but the computer assisted me by crashing "because of an error." Now that I'm booted up again, the icon has disappeared. But before I shut down, it looked like LibreOffice was querying me if I wanted to perform a software update. Maybe it had something to do with that?
Maybe try installing something like Bartender, it may be able to tell you what application is spawning the menu item...
That Icon has only the size of the standard OS X menu bar (I guess 20x20 pixels or so). The screenshot is just shown enlarged in the OP's message. If I hand that over to google image search, then the link to this thread is the only result...I would suspect Google image search returned no results because the image is so large and pixelated.