-webkit-linear-gradient not working with Adobe Air 3.0

Hi -

I recently downloaded Adobe Air 3.0 after reading that gradients are now supported (http://www.adobe.com/devnet/air/ajax/articles/air_and_webkit.html), but I have not been able to successfully implement them. For example, I have the following CSS class defined:

.gradient_test {

     background-image: -webkit-linear-gradient(#68AB34, #3D721B);

     padding: 5px;

     color: #FFF;

}

This should (and does in Chrome, Safari, etc) create a linear gradient going from light to dark green. But in Air it just appears as if no background has been applied to the selector. Am I missing some unique way to be able to apply gradients in Adobe Air 3.0?

Thanks,

Zach