diff --git a/ifc_commands.py b/ifc_commands.py
index 62ced33..b730dbd 100644
--- a/ifc_commands.py
+++ b/ifc_commands.py
@@ -121,10 +121,17 @@ def GetResources(self):
 
     def Activated(self):
         doc = FreeCAD.ActiveDocument
-        if hasattr(doc, "Proxy") and hasattr(doc.Proxy, "ifcfile") and doc.Proxy.ifcfile:
-            FreeCAD.Console.PrintError(translate("BIM","The active document is already an IFC document"))
+        if (
+            hasattr(doc, "Proxy")
+            and hasattr(doc.Proxy, "ifcfile")
+            and doc.Proxy.ifcfile
+        ):
+            FreeCAD.Console.PrintError(
+                translate("BIM", "The active document is already an IFC document")
+            )
         else:
             import ifc_tools
+
             ifc_tools.convert_document(doc)
 
 
diff --git a/ifc_generator.py b/ifc_generator.py
index a6b0e51..fd6a475 100644
--- a/ifc_generator.py
+++ b/ifc_generator.py
@@ -72,7 +72,9 @@ def generate_geometry(obj, cached=False):
         else:
             print_debug(obj)
     elif basenode and obj.ShapeMode == "Coin":
-        node, colors, placement = generate_coin(ifcfile, elements, cached)
+        node, colors, placement = generate_coin(
+            ifcfile, elements, cached, obj.ViewObject
+        )
         if node:
             basenode.addChild(node)
         else:
@@ -186,7 +188,7 @@ def generate_shape(ifcfile, elements, cached=False):
     return shape, colors
 
 
-def generate_coin(ifcfile, elements, cached=False):
+def generate_coin(ifcfile, elements, cached=False, vobj=None):
     """Returns a Coin node for a list of elements"""
 
     # setup
@@ -275,13 +277,32 @@ def generate_coin(ifcfile, elements, cached=False):
             ]
             faceset = coin.SoIndexedFaceSet()
             faceset.coordIndex.setValues(faces)
+            node.addChild(faceset)
+
+            # edges color
+            mat = coin.SoMaterial()
+            lcolor = getattr(vobj, "LineColor", (0, 0, 0))
+            mat.diffuseColor.setValue(lcolor[0], lcolor[1], lcolor[2])
+            node.addChild(mat)
+
+            # edges style
+            dst = coin.SoDrawStyle()
+            dst.lineWidth = getattr(vobj, "LineWidth", 1)
+            node.addChild(dst)
+
+            # get edges
+            edges = list(item.geometry.edges)
+            edges = [
+                e for i in range(0, len(edges), 2) for e in edges[i : i + 2] + [-1]
+            ]
+            edgeset = coin.SoIndexedLineSet()
+            edgeset.coordIndex.setValues(edges)
+            node.addChild(edgeset)
 
             # update cahce
             cache["Coin"][item.id] = node
             cache["Placement"][item.id] = placement
 
-            # apply coin node
-            node.addChild(faceset)
             if grouping:
                 # if we are joining nodes together, their placement
                 # must be baked in
diff --git a/ifc_objects.py b/ifc_objects.py
index 04fc4d8..9190a4f 100644
--- a/ifc_objects.py
+++ b/ifc_objects.py
@@ -24,7 +24,6 @@
 
 
 class ifc_object:
-
     """Base class for all IFC-based objects"""
 
     def __init__(self, otype=None):
@@ -247,7 +246,6 @@ def edit_group(self, obj):
 
 
 class document_object:
-
     """Holder for the document's IFC objects"""
 
     def __init__(self):
diff --git a/ifc_observer.py b/ifc_observer.py
index 4773fe8..ed1819a 100644
--- a/ifc_observer.py
+++ b/ifc_observer.py
@@ -221,7 +221,9 @@ def propose_conversion(self):
                             if not params.GetBool("SingleDocAskAgain", True):
                                 if params.GetBool("SingleDoc", True):
                                     self.full = params.GetBool("ProjectFull", False)
-                                    QtCore.QTimer.singleShot(1000, self.convert_document)
+                                    QtCore.QTimer.singleShot(
+                                        1000, self.convert_document
+                                    )
                                     return
                                 else:
                                     return
@@ -229,10 +231,14 @@ def propose_conversion(self):
                             dlg = FreeCADGui.PySideUic.loadUi(
                                 os.path.join(d, "ui", "dialogConvertDocument.ui")
                             )
-                            dlg.checkStructure.setChecked(params.GetBool("ProjectFull", False))
+                            dlg.checkStructure.setChecked(
+                                params.GetBool("ProjectFull", False)
+                            )
                             result = dlg.exec_()
                             self.full = dlg.checkStructure.isChecked()
-                            params.SetBool("SingleDocAskAgain", not dlg.checkAskAgain.isChecked())
+                            params.SetBool(
+                                "SingleDocAskAgain", not dlg.checkAskAgain.isChecked()
+                            )
                             if result:
                                 params.SetBool("SingleDoc", True)
                                 params.SetBool("ProjectFull", self.full)
@@ -249,6 +255,7 @@ def convert_document(self):
         ifc_tools.convert_document(doc, strategy=2, silent=True)
         if self.full:
             import Arch
+
             site = ifc_tools.aggregate(Arch.makeSite(), doc)
             building = ifc_tools.aggregate(Arch.makeBuilding(), site)
             storey = ifc_tools.aggregate(Arch.makeFloor(), building)
diff --git a/ifc_viewproviders.py b/ifc_viewproviders.py
index 3f92c10..aac95de 100644
--- a/ifc_viewproviders.py
+++ b/ifc_viewproviders.py
@@ -25,7 +25,6 @@
 
 
 class ifc_vp_object:
-
     """Base class for all blenderbim view providers"""
 
     def attach(self, vobj):
@@ -45,6 +44,15 @@ def onChanged(self, vobj, prop):
             for child in vobj.Object.Group:
                 child.ViewObject.Visibility = vobj.Visibility
             return True
+        elif prop == "LineColor" and vobj.Object.ShapeMode == "Coin":
+            lc = vobj.LineColor
+            basenode = vobj.RootNode.getChild(2).getChild(0)
+            if basenode.getNumChildren() == 5:
+                basenode[4][0][3].diffuseColor.setValue(lc[0], lc[1], lc[2])
+        elif prop == "LineWidth" and vobj.Object.ShapeMode == "Coin":
+            basenode = vobj.RootNode.getChild(2).getChild(0)
+            if basenode.getNumChildren() == 5:
+                basenode[4][0][4].lineWidth = vobj.LineWidth
 
     def __getstate__(self):
         return None
@@ -311,7 +319,6 @@ def createGroup(self):
 
 
 class ifc_vp_document(ifc_vp_object):
-
     """View provider for the IFC document object"""
 
     def getIcon(self):
@@ -422,7 +429,6 @@ def diff(self):
 
 
 class ifc_vp_group:
-
     """View provider for the IFC group object"""
 
     def getIcon(self):
@@ -437,7 +443,6 @@ def getIcon(self):
 
 
 class ifc_vp_material:
-
     """View provider for the IFC group object"""
 
     def attach(self, vobj):