If you use the Flex framework at all then you owe it to yourself to check out this great project. What is Reflex you as ? Well Check out the introduction straight from the web site.
Reflex components are incredibly customizable, light-weight and easy to use. Try them in an AS3 projects to get started and move to an MXML workflow when you need to create data intensive applications.
Reflex layouts are versatile and light-weight. They provide advanced measurement and invalidation when you need it and stay out of your way when you don’t.
Reflex skins allow you to control every aspect of a component’s visual appearance. From custom classes to animated MovieClips – or event just PNGs, we’ve got a solution to fit your workflow.
Reflex behaviors control how a component responds to user input. With behaviors you can customize existing functionality without breaking or rewriting the parts that already work.