As my first post, I would like to contribute the custom css style I use to read feeds with this wonderful reader.
It has the following features:
* Clear "newspaper style" header
* Single-column flow for simpler reading/scrolling
* Inline images to the right of text. Multiple images will by design be stacked beside each other, sometimes it will get neat

* Subtle separators, navigation items and hyperlinks.
* Larger font sizes for higher res screens (and matching fonts too!)
Hope someone besides me finds it useful. Comments, improvements, bugs in this thread

Regards,
/I