This got lost a little in the shuffle around MAX. If you're interested in teaching RIA development, or Flex development in general have we got a site for you:

Rich Internet Application teaching resources

We've brought together a wide range of resources for you here including small tutorials, course project ideas, best practice documents, and book recommendations. All it all, a one stop for designing RIA courses around the Flash Platform.

I've been working on a class for some of our higher education community members. I take the class from an Illustrator comp, through Flash Catalyst, then Flash Builder, and Flex to a Flex Application, then on to an AIR application. Because I'm starting in Catalyst, when I get to the AIR application I don't really want to use AIR's chrome. Rather, I'd like to go chromeless and let the UI handle things like closing the application and whatnot.

I found a good tutorial on doing chromeless AIR applications. But no matter what I tried, I couldn't get rid of this big blank whitespace in my application, despite following the directions to the letter.

After a lot of trial and error it turns out that the old way of making the Application background disappear using CSS (step 6 in the article) doesn't work with the new component model. Instead you have to use a custom skin on the WindowedApplication tag.

The following skin works for me. I'm by no means an expert at this skinning stuff yet, but it gets the job done.

Now let me make it clear. There may be another way to do this. There may be a better way of doing it. It's also possible that this is the flat out wrong way to do it. But when I searched for this, I got nothing. So I figured, I could at least help somebody just get the job done, and worry about "the right way" later.