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diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/ConstantStyle.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/ConstantStyle.java
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+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/ConstantStyle.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.diagram.adapter;
+
+import java.awt.AlphaComposite;
+import java.awt.Color;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.RequestProcessor;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.diagram.profile.ProfileKeys;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.layer0.Layer0;
+import org.simantics.scenegraph.INode;
+import org.simantics.scenegraph.profile.DataNodeMap;
+import org.simantics.scenegraph.profile.EvaluationContext;
+import org.simantics.scenegraph.profile.Group;
+import org.simantics.scenegraph.profile.Style;
+import org.simantics.scenegraph.profile.common.ObserverGroupListener;
+import org.simantics.scenegraph.profile.common.ProfileVariables;
+
+public class ConstantStyle implements Style {
+
+    final String name;
+    final Map<String, Object> values = new HashMap<String, Object>();
+    ObserverGroupListener listener = null;
+
+    public ConstantStyle(ReadGraph graph, Resource style) throws DatabaseException {
+        Layer0 L0 = Layer0.getInstance(graph);
+        DiagramResource DIA = DiagramResource.getInstance(graph);
+        this.name = graph.getPossibleRelatedValue(style, L0.HasName, Bindings.STRING);
+        String[] values = graph.getPossibleRelatedValue(style, DIA.HasValues, Bindings.getBindingUnchecked(String[].class));
+        for(int i=0;i<values.length;i+=2) {
+            String key  = values[i];
+            Object value = haxx(key, values[i+1]);
+            this.values.put(key, value);
+        }
+    }
+
+    private Object haxx(String key, Object value) {
+        if("alpha".equals(key)) {
+            return AlphaComposite.getInstance(AlphaComposite. SRC_OVER, Float.parseFloat((String)value));
+        } else if("color".equals(key)) {
+            return new Color(Integer.parseInt(value.toString(), 16));
+        } else {
+            return value;
+        }
+    }
+
+    @Override
+    public void deactivate(Resource diagram, Resource entry, Group group,
+    		EvaluationContext observer) {
+        if (listener != null && !listener.isDisposed()) {
+            listener.dispose();
+            values.clear();
+            observer.update();
+        }
+    }
+
+    @Override
+    public void activate(RequestProcessor backend, Resource diagram, Resource entry, Group group, final EvaluationContext observer) {
+
+        if (listener != null && !listener.isDisposed())
+            return;
+
+        listener = new ObserverGroupListener(this, group, observer);
+
+        group.trackItems(backend, diagram, listener);
+
+    }
+
+    @Override
+    public void apply(Resource entry, Group group, final EvaluationContext evaluationContext) {
+
+//        throw new UnsupportedOperationException();
+        
+//        IDiagram diagram = evaluationContext.getConstant(ProfileKeys.DIAGRAM);
+        ICanvasContext context = evaluationContext.getConstant(ProfileKeys.CANVAS);
+        
+        assert context.getThreadAccess().currentThreadAccess();
+
+        if(listener == null) {
+            System.out.println("ConstantStyle " + this + " was not active in apply!");
+            return;
+        }
+
+        final DataNodeMap map = evaluationContext.getConstant(ProfileKeys.NODE_MAP);
+        
+//        DataElementMap map = diagram.getDiagramClass().getSingleItem(DataElementMap.class);
+
+        for(Map.Entry<String, Object> value : values.entrySet()) {
+
+            for(Object item : listener.getItems()) {
+
+                final INode node = map.getNode(item);
+                
+//                final IElement element = map.getElement(diagram, item);
+                if(node == null) {
+                    //observer.exception(new NullPointerException("ConstantStyle.apply: no element for " + item));
+                    evaluationContext.update();
+                    return;
+                }
+
+                ProfileVariables.claimNodeProperty(node, value.getKey(), value.getValue(), evaluationContext);
+                
+////                System.out.println("apply[" + element + "]: " + value.getKey() + " => " + value.getValue());
+//                Variables.set(node, value.getKey(), value.getValue(), evaluationContext);
+//
+//                PropertySetter setter = element.getElementClass().getAtMostOneItemOfClass(PropertySetter.class);
+//                if(setter != null)
+//                    setter.syncPropertiesToNode(element);
+                
+            }
+        }
+
+    }
+
+    @Override
+    public String toString() {
+        return name;
+    }
+
+}