Matt Brett provides a set of Illustrator and Photoshop files for those wanting to implement the The New Standard Feed Icon in use by Firefox and IE 7.
It’s easily customizable for anyone who is familiar with Adobe Illustrator or Photoshop. I’ve put together a little package containing 18 files. 14 PSDs in different sizes ranging from 16×16 to 128×128. They come in the default orange and grayscale for those who would prefer to customize them to match their site – as I’ve already done. There’s also 4 Illustrator files. Both colour variations which come in 2 versions of Illustrator – CS2 and 10 for those running older versions.