As you may know Adobe has released on its open-source web site the first nightly builds of Flex 4 aka Gumbo release. You can download them here. If you want to give it a try, go ahead, but carefully read the instructions and be cautious as these are very early builds.

One of the nice thing that Adobe has already introduced in these early builds is the FXG extension to MXML that allows you to define in MXML the graphical representation of an object instead of relying on external (SWF, rasters…) assets or on programmatic ActionScript drawings. This is pretty handy because in a few lines of FXG you are able to draw something that would have required much less flexible code to be written in Flex 3.

I couldn’t resist to give it a try, and defining the graphical representation of an ILOG Elixir Gauge using Gumbo FXG.

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In this post, I’ll show you how to customize the look of an Organization Chart item renderer. The item renderer is the flex component that represents a data item (i.e. the “box”).

You can customize the background of an item…

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