Is it possible to paint on a JDesktopPane?

[inflamous]

Hi, I've been trying to create a JDesktopPane that has an "animated" background (just clouds moving in the background right now).
The problem is that whenever I create a new JInternalFrame (I made classes that extend JInternalFrames), they aren't visible (even though I used the setVisible method as well as adding it to the JDesktopPane), but I can still move them around and click on the buttons inside of them.

Is it possible to both paint and have internal frames?

[inflamous]

Nevermind, I fixed it by using and resizing a panel inside the JDesktopPane.