+GDK_AVAILABLE_IN_3_8
+void gtk_icon_info_load_symbolic_async (GtkIconInfo *icon_info,
+ const GdkRGBA *fg,
+ const GdkRGBA *success_color,
+ const GdkRGBA *warning_color,
+ const GdkRGBA *error_color,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+GDK_AVAILABLE_IN_3_8
+GdkPixbuf * gtk_icon_info_load_symbolic_finish (GtkIconInfo *icon_info,
+ GAsyncResult *res,
+ gboolean *was_symbolic,
+ GError **error);