If you look at the right side of the LCD, you can get a sense of how the contextual controls work. Pressing the indicated button will bring up the virtual mode dial, and scrolling the wheel will adjust aperture size. Notice how you get both a numeric aperture readout as well as the iconic closer-farther indicator. Also notice how low the battery's getting; the camera has pretty lame battery life.
Don't worry, you can make this display a lot less cluttered.