diff --git a/docs/source/_images/openmc.png b/docs/source/_images/openmc.png
deleted file mode 100644
index 9f5e97cd6e..0000000000
Binary files a/docs/source/_images/openmc.png and /dev/null differ
diff --git a/docs/source/_images/openmc200px.png b/docs/source/_images/openmc200px.png
deleted file mode 100644
index 3997c6baa0..0000000000
Binary files a/docs/source/_images/openmc200px.png and /dev/null differ
diff --git a/docs/source/_images/openmc_logo.png b/docs/source/_images/openmc_logo.png
new file mode 100644
index 0000000000..73d4765387
Binary files /dev/null and b/docs/source/_images/openmc_logo.png differ
diff --git a/docs/source/_static/theme_overrides.css b/docs/source/_static/theme_overrides.css
index bee03f4150..dea941814d 100644
--- a/docs/source/_static/theme_overrides.css
+++ b/docs/source/_static/theme_overrides.css
@@ -16,3 +16,7 @@
 .wy-table, .rst-content table.docutils, .rst-content table.field-list {
     margin-bottom: 0px;
 }
+
+.wy-side-nav-search {
+    background-color: #343131;
+}
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 1baea2b03c..75e621bc17 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -129,7 +129,7 @@ if not on_rtd:
     html_theme = 'sphinx_rtd_theme'
     html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 
-html_logo = '_images/openmc200px.png'
+html_logo = '_images/openmc_logo.png'
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
diff --git a/docs/source/pythonapi/examples/mdgxs-part-i.rst b/docs/source/pythonapi/examples/mdgxs-part-i.rst
new file mode 100644
index 0000000000..953dcf4700
--- /dev/null
+++ b/docs/source/pythonapi/examples/mdgxs-part-i.rst
@@ -0,0 +1,13 @@
+.. _notebook_mdgxs_part_i:
+
+==========================
+MDGXS Part I: Introduction
+==========================
+
+.. only:: html
+
+    .. notebook:: mdgxs-part-i.ipynb
+
+.. only:: latex
+
+    IPython notebooks must be viewed in the online HTML documentation.
diff --git a/docs/source/pythonapi/examples/mdgxs-part-ii.rst b/docs/source/pythonapi/examples/mdgxs-part-ii.rst
new file mode 100644
index 0000000000..a42eb766b7
--- /dev/null
+++ b/docs/source/pythonapi/examples/mdgxs-part-ii.rst
@@ -0,0 +1,13 @@
+.. _notebook_mdgxs_part_ii:
+
+================================
+MDGXS Part II: Advanced Features
+================================
+
+.. only:: html
+
+    .. notebook:: mdgxs-part-ii.ipynb
+
+.. only:: latex
+
+    IPython notebooks must be viewed in the online HTML documentation.
diff --git a/openmc/mesh.py b/openmc/mesh.py
index 58b9c7c0e5..7d7b483f73 100644
--- a/openmc/mesh.py
+++ b/openmc/mesh.py
@@ -187,15 +187,20 @@ class Mesh(object):
         of the mesh.
 
         For example the following code:
-        for mesh_index in mymesh.cell_generator():
-            print mesh_index
 
-        will produce the following output for a 3-D 2x2x2 mesh in mymesh:
-        [1, 1, 1]
-        [1, 1, 2]
-        [1, 2, 1]
-        [1, 2, 2]
-        ...
+        .. code-block:: python
+
+            for mesh_index in mymesh.cell_generator():
+                print mesh_index
+
+        will produce the following output for a 3-D 2x2x2 mesh in mymesh::
+
+            [1, 1, 1]
+            [1, 1, 2]
+            [1, 2, 1]
+            [1, 2, 2]
+            ...
+
 
         """