May I ask what version of GTK binded with GnuCash 2.3.12 Windows Edition?

[Dancefire]

Hi,

I'm trying to change the Gtk theme of GnuCash, however, I found it
looks like only color has changed, and the shape is keeping square,
which is really not pretty.

Is it that the GTK binding too low? or no theme engine has integrated?
What I'm comparing are GnuCash and Inkscape. Both of them use GTK, but
the appearance on Windows is different. Inkscape looks better.

-- 
Regards

Tao Wang