My renderer is already customized, but it still needs to be centered horizontally within the List control. This should not be this difficult.
By the way, Alex, I was looking forward to your reply to one of my posts that you answered a couple of days ago. It has not been resolved, even though it said "answered," here is the post:
Which is why it works better in Spark. For Halo you have to modify your updateDisplayList to center your widgets. Renderers get stretched to fully cover the width of the List.
Flex SDK Developer
Adobe Systems Inc.