title: What is the proper way to get the current look-and-feel's component background color in Swing?
body: <p>I am writing a custom Swing component with my own painting.  I'd like to query whether or not the current look and feel's components are opaque, and if so, what their background color is so my component can use it too.  I'm having a hard time finding that on Google.  Anyone know?  Thanks!</p>