There is already this one, someone talked about on the list and twitter
recently https://github.com/akamud/FlatSpark
Frédéric THOMAS
> From: aha...@adobe.com
> To: dev@flex.apache.org
> Subject: [FlexJS] Designers needed for default theme
> Date: Tue, 20 May 2014 22:47:40 +0000
>
> Hi,
>
> So far, we've been using developer "art" for FlexJS examples. Several
> folks at 360|Flex agreed that it would be good to have a new theme for
> FlexJS. It should not be Spark or MX revisited. If anybody has design
> skills and wants to offer up a default look for a button, checkbox, radio
> button, text input, date field, etc, please post an Illustrator file for
> review. Like we did for the new Apache Flex logo, we'll have discussion
> and a vote. It won't directly make you richer, but at least you'll have
> bragging rights.
>
> Thanks in advance,
> -Alex
>
