[...]
The Request
As for how it would roughly look (Naturally names can be changed and whatever. They're simply there to represent the feature).
As for what it means, it's quite simple. First you add a new Aspect ratio option, which can be changed at will (the display area). You change it through the new option added in the bottom
Display Area.
100 simply represents the middle. Having it on 100 is the same as
Aspect Ratio - Middle Screen, Square pixels. But, by pressing the
Left or Right pad. You can adjust the number to for example lets say it caps at 80 and 120. So if you change it to 101, the Display Area will move 1 pixel up. If you have it at 110, the Display Area will move 10 pixels up. If you have it at 90, the Display Area will move 10 Pixels down and so on.
For example in the 4th picture, the display area was moved a bit down so he could read the text. Let's say that for example in that screen, the Display Area setting is 90.
That's pretty much it. If there's anything you're wondering about or didn't fully understand. Then by all means just ask away