Comment 4 for bug 588520

Ferdinand, you might be able to work around it using the Koo stylesheet extensions.

I think you can do something like this on the XML views that are causing your headache:

<field name="X" use="{ 'stylesheet': 'your_qt_stylesheet_goes_here' }"/>

Note:
                # Find Koo specific attributes that OpenObject's Relax NG doesn't allow
                self.setStyleSheet( eval(self.attrs.get('use', '{}')).get('stylesheet','') )