Not a Chrome user (poor font rendering on my m/c).

If you released it as a usertyle in userstyles.org, that would have been truly browser agnostic. The Stylish extension makes it possible to then use it on pretty much all browsers:

I use Georgify with Solarised (light) and comfy Helvetica together in all my browsers (Seamonkey/Firefox, Opera, Maxthon) for reading HN.

In my view, this is a much more memory friendly approach for Chrome users also, since there is no need for yet-another extension specific to one site. All they would need is the Stylish extension (which can be used to customise Google, Wikipedia, and a lot other sites).

Just my two coins.