Index: diagrams/testbed-logos.dia
==================================================================
--- diagrams/testbed-logos.dia
+++ diagrams/testbed-logos.dia
@@ -60,11 +60,11 @@
         <dia:attribute name="hguides"/>
         <dia:attribute name="vguides"/>
       </dia:composite>
     </dia:attribute>
   </dia:diagramdata>
-  <dia:layer name="testbed" visible="true" active="true">
+  <dia:layer name="testbed" visible="true">
     <dia:object type="Standard - Box" version="0" id="O0">
       <dia:attribute name="obj_pos">
         <dia:point val="-5,2"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
@@ -2150,11 +2150,11 @@
       <dia:attribute name="file">
         <dia:string>#/home/ivan/vc/fossil/community-lab-intro/pictures/jetway-jbc372f36w,dlbilder-de.jpeg#</dia:string>
       </dia:attribute>
     </dia:object>
   </dia:layer>
-  <dia:layer name="logos" visible="true">
+  <dia:layer name="logos-node" visible="true">
     <dia:object type="Standard - Image" version="0" id="O60">
       <dia:attribute name="obj_pos">
         <dia:point val="5,23"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
@@ -2269,10 +2269,12 @@
       </dia:attribute>
       <dia:attribute name="valign">
         <dia:enum val="3"/>
       </dia:attribute>
     </dia:object>
+  </dia:layer>
+  <dia:layer name="logos-mgmt" visible="true" active="true">
     <dia:object type="Standard - Image" version="0" id="O64">
       <dia:attribute name="obj_pos">
         <dia:point val="21,11"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
@@ -2297,17 +2299,17 @@
         <dia:string>#/home/ivan/vc/fossil/community-lab-intro/logos/django,logo.png#</dia:string>
       </dia:attribute>
     </dia:object>
     <dia:object type="Standard - Image" version="0" id="O65">
       <dia:attribute name="obj_pos">
-        <dia:point val="20,19"/>
+        <dia:point val="24,15"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">
-        <dia:rectangle val="19.95,18.95;24.05,20.4762"/>
+        <dia:rectangle val="23.95,14.95;28.05,16.4762"/>
       </dia:attribute>
       <dia:attribute name="elem_corner">
-        <dia:point val="20,19"/>
+        <dia:point val="24,15"/>
       </dia:attribute>
       <dia:attribute name="elem_width">
         <dia:real val="4"/>
       </dia:attribute>
       <dia:attribute name="elem_height">
@@ -2321,10 +2323,12 @@
       </dia:attribute>
       <dia:attribute name="file">
         <dia:string>#/home/ivan/vc/fossil/community-lab-intro/logos/tinc,logo.png#</dia:string>
       </dia:attribute>
     </dia:object>
+  </dia:layer>
+  <dia:layer name="logos-devel" visible="true">
     <dia:object type="Standard - Image" version="0" id="O66">
       <dia:attribute name="obj_pos">
         <dia:point val="12,28"/>
       </dia:attribute>
       <dia:attribute name="obj_bb">