Sets the font to use for a widget. All other style values are left untouched. See gtk_widget_override_color().
the font descriptiong to use, or NULL to undo the effect of previous calls to gtk_widget_override_font(). [allow-none] Since 3.0
See Implementation
Sets the font to use for a widget. All other style values are left untouched. See gtk_widget_override_color().