diff --git a/src/athena/bildparser.py b/src/athena/bildparser.py
index 3d96c76..d6a8868 100644
--- a/src/athena/bildparser.py
+++ b/src/athena/bildparser.py
@@ -40,7 +40,7 @@ def addCylinder( self, tokens ):
         self.cylinders.append( Cylinder( self.current_color, *(float(x)*(self.scale_factor) for x in tokens) ) )
 
     def addArrow( self, tokens ):
-        self.arrows.append( Arrow( self.current_color, *(float(x) for x in tokens) ) )
+        self.arrows.append( Arrow( self.current_color, *(float(x)*(self.scale_factor) for x in tokens) ) )
 
     def debugSummary( self ):
         pattern =  'parsed BILD: {0} unique colors, {1} spheres, {2} cylinders, {3} arrows' +\
diff --git a/src/athena/decorations.py b/src/athena/decorations.py
index c16736e..b066f2a 100644
--- a/src/athena/decorations.py
+++ b/src/athena/decorations.py
@@ -11,10 +11,13 @@
 
 class SphereDecorations(Qt3DCore.QEntity):
 
-    def __init__(self, parent, spherelist):
+    def __init__(self, parent, bildfile):
         super().__init__(parent)
+        spherelist = bildfile.spheres
         num_spheres = len(spherelist)
 
+        if num_spheres == 0: return
+
         total_vertices = num_spheres
         vertex_basetype = geom.basetypes.Float
         if( total_vertices < 30000 ):
@@ -25,6 +28,7 @@ def __init__(self, parent, spherelist):
         vertex_nparr = np.zeros([total_vertices,7],dtype=geom.basetype_numpy_codes[vertex_basetype])
 
         for idx, (color, x, y, z, r) in enumerate(spherelist):
+            if color is None: color = QColor('white')
             vertex_nparr[idx,:] = x, y, z, r, color.redF(), color.greenF(), color.blueF()
 
         self.geometry = Qt3DRender.QGeometry(self)
@@ -54,10 +58,14 @@ def __init__(self, parent, spherelist):
 
 class CylinderDecorations(Qt3DCore.QEntity):
 
-    def __init__(self, parent, cylinderlist):
+    def __init__(self, parent, bildfile):
         super().__init__(parent)
+        # Draw the arrow bodies as cylinders too
+        cylinderlist = bildfile.cylinders + [ Cylinder(*x[:8]) for x in bildfile.arrows]
         num_cylinders = len(cylinderlist)
 
+        if num_cylinders == 0: return
+
         total_vertices = 2 * num_cylinders
         vertex_basetype = geom.basetypes.Float
         if( total_vertices < 30000 ):
@@ -67,6 +75,7 @@ def __init__(self, parent, cylinderlist):
 
         vertex_nparr = np.zeros([total_vertices,7],dtype=geom.basetype_numpy_codes[vertex_basetype])
         for idx, (color, x1, y1, z1, x2, y2, z2, r) in enumerate(cylinderlist):
+            if color is None: color = QColor('white')
             vertex_nparr[2*idx,:] = x1, y1, z1, r, color.redF(), color.greenF(), color.blueF()
             vertex_nparr[2*idx+1,:] = x2, y2, z2, r, color.redF(), color.greenF(), color.blueF()
         
diff --git a/src/athena/mainwindow.py b/src/athena/mainwindow.py
index fbcc059..e9d2792 100644
--- a/src/athena/mainwindow.py
+++ b/src/athena/mainwindow.py
@@ -165,7 +165,6 @@ def parseLCBBToolOutput( output ):
     iter_out = iter(output.split('\n'))
     for line in iter_out:
         if line.strip().startswith('2.7.'):
-            print(line)
             line27a = next(iter_out)
             line27b = next(iter_out)
             result['edge_length'] = float( line27a.split(':')[1].strip() )
@@ -372,7 +371,7 @@ def selectOutput( self, selection_idx ):
         if selection_idx == -1: return
         (bildfile, scale_factor) = self.outputSelectBox.itemData(selection_idx)
         decorations = bildparser.parseBildFile( bildfile, scale_factor )
-        print(decorations.debugSummary())
+        #print(decorations.debugSummary())
         self.geomView.newDecorations( decorations )
 
     def updateStatus( self, msg ):
diff --git a/src/athena/viewer.py b/src/athena/viewer.py
index 5df6210..c5844c7 100644
--- a/src/athena/viewer.py
+++ b/src/athena/viewer.py
@@ -332,16 +332,17 @@ def __init__(self):
         self.transPassFilter.setValue('transp')
         self.qfilt2.addMatch(self.transPassFilter)
 
-        fg = self.activeFrameGraph()
-        def frameGraphLeaf(node, prefix=' '):
-            print(prefix, node, node.objectName())
-            children = node.children()
-            for c in children:
-                frameGraphLeaf(c, prefix+'-')
-
-        frameGraphLeaf(fg)
+        # Framegraph display and testing code
+        #fg = self.activeFrameGraph()
+        #def frameGraphLeaf(node, prefix=' '):
+            #print(prefix, node, node.objectName())
+            #children = node.children()
+            #for c in children:
+                #frameGraphLeaf(c, prefix+'-')
+
+        #frameGraphLeaf(fg)
         self.setActiveFrameGraph(self.surfaceSelector)
-        frameGraphLeaf(self.activeFrameGraph())
+        #frameGraphLeaf(self.activeFrameGraph())
 
         self.setBackgroundColor( QColor(63,63,63) )
         self.lightOrientation = int(0) # Internal integer controlling light.position attribute
@@ -400,10 +401,10 @@ def frameGraphLeaf(node, prefix=' '):
     backgroundColorChanged = Signal( QColor )
 
     def backgroundColor( self ):
-        return self.defaultFrameGraph().clearColor()
+        return self.clearBuffers.clearColor()
 
     def setBackgroundColor( self, color ):
-        self.defaultFrameGraph().setClearColor( color )
+        self.clearBuffers.setClearColor( color )
         self.backgroundColorChanged.emit(color)
 
     faceRenderingEnabledChanged = Signal( bool )
@@ -481,9 +482,9 @@ def newDecorations(self, bild_results):
         self.clearDecorations()
 
         if( bild_results.spheres ):
-            self.spheres = decorations.SphereDecorations(self.decorationEntity, bild_results.spheres)
+            self.spheres = decorations.SphereDecorations(self.decorationEntity, bild_results)
             self.spheres.addComponent( self.sphere_material )
 
         if( bild_results.cylinders ):
-            self.cylinders = decorations.CylinderDecorations(self.decorationEntity, bild_results.cylinders)
+            self.cylinders = decorations.CylinderDecorations(self.decorationEntity, bild_results)
             self.cylinders.addComponent( self.cylinder_material )
diff --git a/src/qml/imposter.qml b/src/qml/imposter.qml
index b6f2719..2f6e180 100644
--- a/src/qml/imposter.qml
+++ b/src/qml/imposter.qml
@@ -29,7 +29,9 @@ Material {
                     RenderPass {
                         // populated with a shader within geomview.py, since qml cannot usefully work with
                         // relative file paths for shader loading
-                        renderStates: [ MultiSampleAntiAliasing{} ]
+                        renderStates: [ CullFace{ mode: CullFace.NoCulling },
+                                        DepthTest{ depthFunction: DepthTest.LessOrEqual },
+                                        MultiSampleAntiAliasing{} ]
                     } ]
         }
     ]