Example : Styling Flex 2 Applications with CSS
The Adobe Consulting team has been busy over at their blog this week. Not only have they updated their super useful Flex Style explorer, but they also released a CSS style sheet that will make your Flex application look a lot like a Mac app.
Both require Flex 2 / Flash Player 9 Beta 3, which you can grab from labs.
You can find more info on styling Flex apps using CSS on livedocs.