diff --git a/docs/notebooks/ex01_specimen_amplitudes.ipynb b/docs/notebooks/ex01_specimen_amplitudes.ipynb
index d777b96..74ca5d0 100644
--- a/docs/notebooks/ex01_specimen_amplitudes.ipynb
+++ b/docs/notebooks/ex01_specimen_amplitudes.ipynb
@@ -28,11 +28,16 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "import sys\n",
     "import felupe as fem\n",
     "import matplotlib.pyplot as plt\n",
     "import numpy as np\n",
     "import termtables as tt\n",
     "from pypardiso import spsolve\n",
+    "import pyvista as pv\n",
+    "\n",
+    "if \"google.colab\" in sys.modules:\n",
+    "    pv.start_xvfb()\n",
     "\n",
     "import fiberreinforcedrubber as frr\n",
     "\n",
@@ -186,11 +191,8 @@
     "view = fem.ViewMesh(mesh)\n",
     "plotter = view.plot(\n",
     "    notebook=True,\n",
-    "    theme=\"document\",\n",
     "    add_axes=False,\n",
-    "    edge_color=\"black\",\n",
     "    color=\"lightgrey\",\n",
-    "    line_width=4,\n",
     ")\n",
     "plotter.show(jupyter_backend=\"static\")"
    ]
@@ -213,10 +215,9 @@
     "view = fem.ViewMesh(fem.mesh.concatenate([fibers_1, fibers_2]))\n",
     "plotter = view.plot(\n",
     "    notebook=True,\n",
-    "    theme=\"document\",\n",
     "    add_axes=False,\n",
     "    color=\"black\",\n",
-    "    line_width=4,\n",
+    "    line_width=2,\n",
     ")\n",
     "plotter.show(jupyter_backend=\"static\")"
    ]
@@ -420,9 +421,9 @@
     "    view = fem.ViewSolid(field)\n",
     "    plotter = view.plot(\n",
     "        notebook=True,\n",
-    "        theme=\"document\",\n",
     "        show_edges=False,\n",
     "        add_axes=False,\n",
+    "        color=\"lightgrey\",\n",
     "    )\n",
     "    plotter.add_axes(label_size=(0.06, 0.06))\n",
     "\n",
@@ -441,6 +442,7 @@
     "        plotter=plotter,\n",
     "        line_width=3,\n",
     "        add_axes=False,\n",
+    "        color=\"lightgrey\",\n",
     "    )\n",
     "    fiberplotter = fiberview1.plot(\n",
     "        \"Normal Force (Range) per Undeformed Area (Fibre) in MPa\",\n",
@@ -452,9 +454,18 @@
     "        above_color=\"lightgrey\",\n",
     "        line_width=3,\n",
     "        add_axes=False,\n",
+    "        color=\"lightgrey\",\n",
     "    )\n",
     "    fiberplotter.show(jupyter_backend=\"static\")"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f7289d31-536e-46c1-afa5-d1aee857ba1e",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -473,7 +484,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.8"
+   "version": "3.11.5"
   }
  },
  "nbformat": 4,