/*! The font values are all optional. If a NULL is used for any of them, then
the default font will be used. */
-RrTheme* RrThemeNew(const RrInstance *inst, gchar *theme,
+RrTheme* RrThemeNew(const RrInstance *inst, const gchar *theme,
+ gboolean allow_fallback,
RrFont *active_window_font, RrFont *inactive_window_font,
RrFont *menu_title_font, RrFont *menu_item_font,
RrFont *osd_font);