Added missing VisAttributes and kept 2cm pixel size for now

calorimeters/CentralBarrel_AMEGOX.xml

@@ -70,6 +70,7 @@
     <vis name="RBG510"         alpha="0.5"  r= "1.0"  g=".2"   b="0.0"  showDaughters="true"  visible="true"/>
     <vis name="RBG"            alpha="0.5"  r= "1.0"  g="1.0"  b="1.0"  showDaughters="true"  visible="true"/>
     <vis name="GrayVis"        alpha="0.5"  r= "0.75" g="0.75" b="0.75" showDaughters="true"  visible="true"/>
+    <vis name="EcalBarrelVis"  alpha="1.0"  r="0.0"   g="0.99" b="0.0"  showDaughters="false" visible="true" />
   </display>
 
   <!-- Define detector -->
@@ -102,7 +103,7 @@
   <!--  Definition of the readout segmentation/definition  -->
   <readouts>
     <readout name="EcalBarrelHits">
-      <segmentation type="CartesianGridXY" grid_size_x="2*cm" grid_size_y="2*cm"/>
+      <segmentation type="CartesianGridXY" grid_size_x="2.0 * cm" grid_size_y="2.0 * cm"/>
       <id>system:8,barrel:3,module:4,layer:6,slice:5,x:32:-16,y:-16</id>
     </readout>
   </readouts>