It might be interesting to have a toggle that shows the Layouts your using. It's hard to tell what the difference between "wide button" and  "tall button" are (they look pretty close to the same to me).

![screen shot 2014-01-08 at 11 12 25 am](https://f.cloud.github.com/assets/630449/1871007/70c145c2-7890-11e3-9678-9b91bbf6d9e8.png)

Maybe have a toggle to add ```SWT.BORDER``` to the SquareButtonExample? Idk, just a thought.