Read panel does not honour Fonts set in System

[Elfy]

System set up to use Ubuntu fonts.

Liferea uses system font in all panels except the one that shows the text of the feed.

Screenshot attached.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: liferea 1.8.3-0.1ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-3.3-generic 3.5.0-rc5
Uname: Linux 3.5.0-3-generic i686
ApportVersion: 2.2.5-0ubuntu2
Architecture: i386
Date: Thu Jul 5 10:54:50 2012
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120626)
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: liferea
UpgradeStatus: No upgrade log present (probably fresh install)