I’ll be giving my Flash Player 10 Peer-to-Peer talk at Flashbelt this week. This will be my fifth Flashbelt and it’s by far my favorite conference of the year. I not only love that fact that it’s in my backyard and I get to sleep in my own bed each night, but the conference is run to perfection; great speakers and a great atmosphere. I’m really looking forward to it this year. See you there!

Here is a quick tip for setting a transparent image as the background of your Flex application. If you want that transparency to pass through to the HTML page you would set your wmode to “transparent.” But even after you set your transparent background image you’ll notice that default blue background still shows through. And yu can’t set the backgroundAlpha to 0 since that would also hide your background image. What you need to know is that the backgroundColor is defaulted to that blue color, so you must set the backgroundColor to undefined so your application has no background color:

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Application {
    backgroundImage: Embed(source="/assets/Background.png");
    backgroundColor: undefined;
}