extending flex 4 'group' component problem

I have a component that were exported from catalyst (the component is based on a tag). Now I created a new component extending this. However when I add this new component to my module it doesn't seem to inherit the designs that were exported from catalyst. Any idea how i can d开发者_如何学Co that?

Ofcource when I add the component that were directly out of catalyst all the designs appears..

Thanks.

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If show you us some code, it may help. But, it sounds like you're not properly setting the skin class on your List instance.