diff --git a/README.md b/README.md
index 35198e0f..228ab886 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,6 @@ python install_tech.py
 
 ## Documentation
 
-- Run notebooks on [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/gdsfactory/binder-sandbox/HEAD)
+- [![Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/gdsfactory/gdsfactory-photonics-training)
 - [UBCpdk docs](https://gdsfactory.github.io/ubc/) and [code](https://github.com/gdsfactory/ubc)
 - [gdsfactory docs](https://gdsfactory.github.io/gdsfactory/)
diff --git a/docs/_toc.yml b/docs/_toc.yml
index 70777460..490e75de 100644
--- a/docs/_toc.yml
+++ b/docs/_toc.yml
@@ -32,5 +32,5 @@ parts:
         title: Plugins
       - url: https://gdsfactory.github.io/gdsfactory
         title: gdsfactory
-      - url: https://github.com/gdsfactory/gdsfactory-photonics-training
+      - url: https://gdsfactory.github.io/gdsfactory-photonics-training/
         title: gdsfactory-photonics-training
diff --git a/docs/notebooks/00_layout.py b/docs/notebooks/00_layout.py
index 20f59564..f3ce5520 100644
--- a/docs/notebooks/00_layout.py
+++ b/docs/notebooks/00_layout.py
@@ -1,82 +1,119 @@
 # ---
 # jupyter:
 #   jupytext:
+#     custom_cell_magics: kql
 #     text_representation:
 #       extension: .py
-#       format_name: light
-#       format_version: '1.5'
-#       jupytext_version: 1.14.5
+#       format_name: percent
+#       format_version: '1.3'
+#       jupytext_version: 1.11.2
 #   kernelspec:
 #     display_name: Python 3 (ipykernel)
 #     language: python
 #     name: python3
 # ---
 
+# %% [markdown]
 # # Layout
 #
 # All UBC ubcpdk.components cells are conveniently combined into the ubcpdk.components module.
 
-# +
+# %%
 import gdsfactory as gf
 
 import ubcpdk
 
-# -
+gf.CONF.display_type = "klayout"
 
+# %% [markdown]
 # ## Fixed Component cells
 #
 # Most `ubcpdk` components are imported from GDS files as fixed cells.
 
-ubcpdk.components.ebeam_crossing4()
+# %%
+c = ubcpdk.components.ebeam_crossing4()
+c.plot()
 
-ubcpdk.components.ebeam_swg_edgecoupler()
+# %%
+c = ubcpdk.components.ebeam_swg_edgecoupler()
+c.plot()
 
-ubcpdk.components.ebeam_bdc_te1550()
+# %%
+c = ubcpdk.components.ebeam_bdc_te1550()
+c.plot()
 
-ubcpdk.components.ebeam_adiabatic_te1550()
+# %%
+c = ubcpdk.components.ebeam_adiabatic_te1550()
+c.plot()
 
-ubcpdk.components.ebeam_y_adiabatic()
+# %%
+c = ubcpdk.components.ebeam_y_adiabatic()
+c.plot()
 
-ubcpdk.components.ebeam_y_1550()
+# %%
+c = ubcpdk.components.ebeam_y_1550()
+c.plot()
 
+# %% [markdown]
 # ## Parametric Component PCells
 #
 # You can also define cells adapted from gdsfactory generic pdk.
 
-ubcpdk.components.straight(length=2)
+# %%
+c = ubcpdk.components.straight(length=2)
+c.plot()
 
-ubcpdk.components.bend_euler(radius=5)
+# %%
+c = ubcpdk.components.bend_euler(radius=5)
+c.plot()
 
-ubcpdk.components.ring_with_crossing()
+# %%
+c = ubcpdk.components.ring_with_crossing()
+c.plot()
 
-ubcpdk.components.dbr()
+# %%
+c = ubcpdk.components.dbr()
+c.plot()
 
-ubcpdk.components.spiral()
+# %%
+c = ubcpdk.components.spiral()
+c.plot()
 
-ubcpdk.components.mzi_heater()
+# %%
+c = ubcpdk.components.mzi_heater()
+c.plot()
 
-ubcpdk.components.ring_single_heater()
+# %%
+c = ubcpdk.components.ring_single_heater()
+c.plot()
 
+# %% [markdown]
 # ## Components with grating couplers
 #
 # To test your devices you can add grating couplers. Both for single fibers and for fiber arrays.
 
+# %%
 splitter = ubcpdk.components.ebeam_y_1550(decorator=gf.port.auto_rename_ports)
 mzi = gf.components.mzi(splitter=splitter)
-mzi
+mzi.plot()
 
+# %%
 component_fiber_array = ubcpdk.components.add_fiber_array(component=mzi)
-component_fiber_array
+component_fiber_array.plot()
 
+# %%
 c = ubcpdk.components.ring_single_heater()
 c = ubcpdk.components.add_fiber_array_pads_rf(c)
-c
+c.plot()
 
+# %%
 c = ubcpdk.components.mzi_heater()
 c = ubcpdk.components.add_fiber_array_pads_rf(c, optical_routing_type=2)
-c
+c.plot()
 
+# %% [markdown]
 # ## 3D rendering
 
+# %%
 scene = c.to_3d()
 scene.show()
diff --git a/ubcpdk/tech.py b/ubcpdk/tech.py
index 6dab8d1d..635a6804 100644
--- a/ubcpdk/tech.py
+++ b/ubcpdk/tech.py
@@ -34,8 +34,6 @@ class LayerMapUbc(BaseModel):
     PORTE: Layer = (1, 11)  # PinRecM
     FLOORPLAN: Layer = (99, 0)
 
-    TE: Layer = (203, 0)
-    TM: Layer = (204, 0)
     TEXT: Layer = (10, 0)
     SHOW_PORTS: Layer = (1, 13)
     PADDING: Layer = (67, 0)