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Custom themes in Notebook 7
In Notebook 7, the way to create custom themes has changed. This means that custom themes developed for Notebook 6 or earlier will not work with Notebook 7 and upwards.
This is for example the case for community contributed themes such as jupyter-themes.
Using a custom theme
Fortunately installing a custom theme for Notebook 7 is very easy. It is the same process as installing a regular extension.
For exampe let's say you want to install the JupyterLab Night theme. You can do so by running the following command:
pip install jupyterlab-night
Then refresh the page and you should see the new theme available in the settings menu:
There are already many themes available on PyPI.
You can also find other themes using the jupyterlab-theme topic on GitHub: https://github.com/topics/jupyterlab-theme
For example:
- https://github.com/johnnybarrels/jupyterlab_onedarkpro
- https://github.com/dunovank/jupyterlab_legos_ui
- https://github.com/timkpaine/jupyterlab_miami_nights
Creating a custom theme
Creating a custom theme for Notebook 7 follows the same process as creating a custom theme for JupyterLab 4.
See the {ref}Frontend Extension Guide <frontend-extensions> to get you started. When creating the extension, select the Theme option in the cookiecutter prompt.