Font selection in Nautilus, where is it done?

[<simos pc96 ma rhbnc ac uk>]

Dear All,
	I would like to ask how the fonts that appear in
the caption of files in Nautilus specified.
	I have found four related places in nautilus.po
and I have put correct values for the el language.

However, the fonts that are used for
	. the captions of icons (files/etc)
	. the Notes/History/Tree/Help tabs

are not iso-8859-7 fonts as they should.

Thanks,
simos