Warning gtk_rc_add_widget_class_style is deprecated and should not be used in newly-written code. Use gtk_rc_parse_string() with a suitable string instead. Adds a GtkRcStyle that will be looked up by a match against
the pattern
See Implementation
Warning gtk_rc_add_widget_class_style is deprecated and should not be used in newly-written code. Use gtk_rc_parse_string() with a suitable string instead. Adds a GtkRcStyle that will be looked up by a match against