[maemo-developers] Rotated tabs not supported by Hildon

[From: Jeffrey Barish]

I previously reported (in June) that rotated tabs on notebooks do not look
right.  I learned recently that they are not supported in Hildon even
though they are supported in GTK and Nokia does not plan to support them. 
I was told that it should be possible to work around the problem by
modifying gtkrc (in /usr/share/themes/default/gtk-2.0/).  I have found in
gtkrc where the theme is specified for tabs on top of the notebook.  I have
found the images (in /usr/share/themes/default/images/) used to create the
tabs.  I suppose that I can rotate the relevant images using a suitable
bitmap editor and I can guess at some of the changes I need to make in
gtkrc.  But I'm wondering:

- Has anyone already solved the problem of rotated notebook tabs?

- Has anyone solved a similar problem that I can use as a model?

- Is there documentation for the theme engine?  I found
http://library.gnome.org/devel/gtk/unstable/gtk-Resource-Files.html, but it
only mentions the engine keyword without explaining the engine-specific
settings.

- What do I do with the modified gtkrc to make my changes appear?

- Am I on the right track?
-- 
Jeffrey Barish