GtkComboBox Properties

["Ivon Cullumber" <gtk roadpebble net>]

Greetings,
I am trying to change the color properties on a GtkComboBox, specifically the background color under a 
prelight condition and the highlighting color that is used in the dropdown list.  On other widgets I am able 
to use gtk_widget_modify_bg() or gtk_widget_modify_base().  But these two functions don't seem to work for 
the ComboBox.  Is there another function available to perform these tasks?  Also it seems to me that the 
combo box is actually made up of other widgets (ie GtkListView, GtkEntry) is there any way to access these 
components specifically?  It seems in the source code that all of these things are set to private.  

Thanks,
Ivon Cullumber