I always forget this one so I decided to post it…wanna remove the default blue-gray background from your flex apps and make it the same color as your actual application?

Just put in the -default-background-color compiler switch and provide a hex color — I use white in the following example.

(Thanks for SWF MetaData reminder Ben: Return Undefined and soon migrating to Ben-Clinkenbeard-dot-com)

Ant MXMLC

<mxmlc>
    ...
    <default-background-color>0xFFFFFF</default-background-color>
    ....
</mxmlc>

Flex Builder -> Project Properties -> Compiler Options -> Additional compiler arguments:

-default-background-color #FFFFFF

SWF MetaData

[SWF( backgroundColor="#FFFFFF" )]

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