With the Flex 3 SDK you simply needed to set the borderThickness style to 0, or set borderStyle to none. With the Flex 4 SDK ad the Spark theme, this has no effect.

Here's what works with ant build.xml: <mxmlc file="${module.main.dir}/main.mxml" keep-generated-actionscript="false" output="${module.output.dir}/main.swf" fork="${flex.fork}"> <load-con...

In Flex 4, are there any differences between parentApplication and FlexGlobals.topLevelApplication? Are referring to the same top level application? I think both are same; one (parentApplication) ...

I used Flex 2/3 for a couple of years and have just come back to it, upgrading to Flex 4. I'm seeing some references to Halo and Spark themes but I never got into themes in my previous work so I'm ...

Is there more work, or source code files required to customize your look and feel (skins)? How maintainable and readable is Spark relative to Halo? Is it more productive and easier to customize ove...