diff --git a/org.fortiss.tooling.kernel.ui/plugin.xml b/org.fortiss.tooling.kernel.ui/plugin.xml
index 8f76e8c6d6cd0bad21b7a515806f273ba7cd679a..f84dd2cdad77ebdb72f81b1b3276d21dfba748ce 100644
--- a/org.fortiss.tooling.kernel.ui/plugin.xml
+++ b/org.fortiss.tooling.kernel.ui/plugin.xml
@@ -116,30 +116,11 @@
          </propertySection>
       </propertySections>
    </extension>
-   <extension
-         point="org.eclipse.ui.decorators">
-      <decorator
-            class="org.fortiss.tooling.kernel.ui.internal.ConstraintLabelDecorator"
-            id="org.fortiss.tooling.kernel.ui.internal.ConstraintLabelDecorator"
-            label="Constraint Decorator"
-            lightweight="true"
-            location="BOTTOM_LEFT"
-            state="true">
-         <enablement>
-            <objectClass
-                  name="org.eclipse.emf.ecore.EObject">
-            </objectClass>
-         </enablement>
-      </decorator>
-   </extension>
    <extension
          point="org.fortiss.tooling.kernel.ui.contextMenuContribution">
       <contextMenuContribution
             contributor="org.fortiss.tooling.kernel.ui.internal.views.NavigatorNewMenu">
       </contextMenuContribution>
-      <contextMenuContribution
-            contributor="org.fortiss.tooling.kernel.ui.internal.views.ConstraintMenu">
-      </contextMenuContribution>
    </extension>
    <extension
          point="org.eclipse.ui.perspectives">
@@ -150,15 +131,6 @@
             name="Storage">
       </perspective>
    </extension>
-   <extension
-         point="org.fortiss.tooling.kernel.ui.modelElementHandler">
-      <modelElementHandler
-            handler="org.fortiss.tooling.kernel.ui.extension.base.ConstraintUIBases$ConstraintHandler">
-         <modelElementClass
-               modelElementClass="org.fortiss.tooling.kernel.model.constraints.ConstraintInstance">
-         </modelElementClass>
-      </modelElementHandler>
-   </extension>
    <extension point="org.fortiss.tooling.kernel.uiMessageHandler">
       <uiMessageHandler
             handler="org.fortiss.tooling.kernel.ui.extension.base.DialogMessageHandler">