Latest Development
News here
Download & Install
(Firefox, Safari, Camino, and Omniweb supported). It currently looks bad in Opera, sorry (but I'm working on it)
Install as a userscript
For Firefox with Greasemonkey, or any Webkit browser (Safari, Omniweb etc.) with GreaseKit installed. This is the preferred method, as it will only apply to Google Reader, and will update automatically whenever a new version is released (all you have to do is refresh!).
Also, I recommend installing the Show Feed Favicons userscript to add the final touches.
The Helvetireader user script is ideal for using with Fluid.app to create a standalone application
Or download the CSS file to use with any browser that allows custom stylesheets.