diff --git a/kconf_update/kwin.upd b/kconf_update/kwin.upd
--- a/kconf_update/kwin.upd
+++ b/kconf_update/kwin.upd
@@ -19,3 +19,9 @@
 AllKeys
 Group=Plugins
 Key=scaleEnabled,kwin4_effect_scaleEnabled
+
+# Port the Dim Screen effect to JavaScript.
+Id=port-dimscreen-effect-to-js
+File=kwinrc
+Group=Plugins
+Key=dimscreenEnabled,kwin4_effect_dimscreenEnabled