I\'m having an issue figuring out this display bar in IntelliJ Idea Community Edition 15.
Does anyone know what this is and/or how to turn it off?
It is known as the breadcrumb menu for current code position. For example in your image you are in the position of class Display -> method Display() (constructor) -> member anonymous ActionListner -> method actionPerformed() -> member anonymous SwingWorker. (should be verified)
To disable it from showing, Go to File -> Settings -> Editor -> General -> Appearance
And Find and un-tick 'Show breadcrumbs'.
You might need to restart the editor, to take this effect into action.