Flex SWF Gradient Background

Every time I compile a MXML file, I get a SWF file. When I load the SWF file to the browser, all the space outside the SWF file is this gray gradient.

I want to change the color, or make it disappear entirely, however, when I search for开发者_StackOverflow社区 "Flex background color" I get information to do other things.

How do I get rid of that?

Add the following to thr compiler arguments:

-default-background-color #222222

Where color is the color you like.

To change background color of SWF itself change values of Application tag. For MX Application refer to the documentation and take a look at backgroundGradientAlphas and backgroundGradientColors styles.

For Spark Application documentation is here.