I'm trying to style up a Spark List for mobile and about the best I've been able to do so far is font size. I'm wondering if anyone has some good examples? I'm specifically interested in:
a) Inset lists (see how jQuery Mobile does it - but basically the list takes about 95% of the width and has nicely rounded corners)
b) changing just the background of the list items.
Anyone got some code they can share?
On mobile, List uses spark.components.LabelItemRenderer by default. It supports a limited amount of styling, mostly dealing with colors and padding. The IconItemRenderer provides more functionality, adding icons and a message text. If you want to perform more drastic customizations, you'll need to either subclass LabelItemRenderer or IconItemRenderer and override some of the drawing functions like drawBackground or layoutContents.
Here's a small section in the help docs: http://help.adobe.com/en_US/flex/using/WS684a1733bf2efe8a3a0afb75129d7657f1c-7fff.html. If you search around, you'll find a few more helpful tips in the docs.
Flex SDK Engineer