see thru

Transparent JFrame - How to make a JFrame transparent on Mac OS X

Summary: How to make a Java JFrame transparent (translucent) on Mac OS X.

A lot of people complain about a lot of things in regards to Java on Apple's Mac OS X platform, and okay, occasionally I'm one of them, but a very cool thing you can do on OS X is to create translucent (transparent) frames and windows with Java.