Rated 4 out of 5 stars

Nice and definitely a closer match to Gnome/Tango icons than the default (although I thought it was supposed to pick up some theme icons). The only thing I think could be improved would be if there was a difference between "unread" and "new unread" (closed, full saturation envelope vs current starred envelope). It doesn't seem to be part of the Gnome theme, only the Oxygen theme on my machine, but it would stop my large stack of old unread RSS messages having far too many bright yellow stars and would differentiate between the two types of "new" like the standard theme does.

This review is for a previous version of the add-on (1.0).