[pygtk] Treeview: How to set Font Size in Column Titles?

[darethehair]

Hello all!

 From the PyGTK docs, I know the various ways to change the font size in 
'treeview' columns/cells, but they appear to only work on the column 
*data*, and not the column *titles*.  The effect of this is that I can 
make my fonts (for example) smaller and get more rows in the screen, but 
the title font sizes do not change, and so it looks silly.

Any tips?

Thanks