+
+ /* If you run your application with
+ * GTK_DEBUG=no-css-cache
+ * every invalidation will purge the cache and completely query
+ * everything anew form the cache. This is slow (in particular
+ * when animating), but useful for figuring out bugs.
+ *
+ * We achieve that by pretending that everything that could have
+ * changed has and so we of course totally need to redo everything.
+ *
+ * Note that this also completely revalidates child widgets all
+ * the time.
+ */
+ if (G_UNLIKELY (gtk_get_debug_flags () & GTK_DEBUG_NO_CSS_CACHE))
+ change = GTK_CSS_CHANGE_ANY;