Java UIManager - What's the name of the area around a button

I'm using the Windows XP look and feel. On a panel containing a button there is a rectangular area around a button that looks like the area that a classic button would take up. That area is not adhering to the color of my开发者_如何学C panel. For example I'm setting my panel to blue but the area around the button is still white. What is the name of that area. I've tried button.shadow but that's not it.

Thanks ST

Not all properties are controlled by the UIManager. You can use UIManager Defaults to see if you can find the property you are looking for.

With an example it is hard to know for sure. What about: button.border or button.darkshadow.