Jupyter Notebook Dark Theme - Jupyter Dark Mode

Jupyter Notebook

Introduction to Jupyter Notebook Dark Mode

Jupyter Notebook is an open-source web application that allows users to create and share documents that contain live code, equations, visualizations, and narrative text. It is widely used in data science and research communities, and its popularity continues to grow.

However, using Jupyter Notebook for extended periods can cause eye strain and fatigue, especially when working in low-light environments. This is where the dark theme comes in, which can make the user interface easier on the eyes by reducing the amount of light emitted from the screen. 

The Jupyter Notebook Dark Theme is a popular alternative to the default light theme, providing a more pleasant and productive working environment for users who prefer to work in darker settings. In the following sections, we'll discuss how to enable and customize the dark theme, as well as the pros and cons of using it.

How to Enable the Dark Theme Using Jupyter Themes Toolbar and Other Ways

Enabling the dark theme in Jupyter Notebook is a straightforward process. You can either do it by using the Jupyter Notebook interface or by modifying the configuration file directly.

Option 1: Enabling the Dark Theme via the Interface

  1. Open Jupyter Notebook in your web browser.

  2. Click on the "Settings" button on the right-hand side of the screen.

  3. Click on the "JupyterLab Theme" option in the drop-down menu.

  4. Select the "JupyterLab Dark" option from the list of available themes.

  5. The page should now reload with the new dark theme applied. If it doesn't, try refreshing the page.

Option 2: Enabling the Dark Theme via the Configuration File

  1. Open the terminal or command prompt on your computer.

  2. Type the following command to open the Jupyter Notebook configuration file:

    jupyter notebook --generate-config

  3. This should create a configuration file called "jupyternotebookconfig.py" in your home directory.

  4. Open the configuration file in a text editor.

  5. Find the line that starts with "c.NotebookApp." and add the following code at the end of that line:

    c.JupyterLabTheme.theme = 'JupyterLab Dark'

  6. Save the changes and close the text editor.

  7. Restart Jupyter Notebook and the dark theme should be enabled.

That's it! With these simple steps, you can easily switch to the dark theme in Jupyter Notebook and enjoy a more comfortable coding experience.

Customizing the Dark Theme

Once you have enabled the dark theme in Jupyter Notebook, you can further customize it to better suit your preferences. Here are some ways to do that:

  1. Change the color scheme: Jupyter Notebook's dark theme comes with a default color scheme, but you can customize it to your liking. To do this, go to "Settings" > "JupyterLab Theme" and click on the "Advanced Settings Editor" button. Here, you can edit the JSON file to modify the colors used in the dark theme. For example, you could change the background color or the text color.

  2. Use a different dark theme: If you don't like the default dark theme, you can choose from several other dark themes available for Jupyter Notebook. To do this, go to "Settings" > "JupyterLab Theme" and select the "Find More Extensions" option. This will take you to the JupyterLab extensions page, where you can search for and install different dark themes.

  3. Install custom CSS: Another way to customize the dark theme is by installing custom CSS. This will allow you to add your own styles to the Jupyter Notebook interface. To do this, create a CSS file with your custom styles and save it to a location on your computer. Then, go to "Settings" > "JupyterLab Theme" and click on the "Advanced Settings Editor" button. In the JSON file, add the following code:

    { "theme": "custom", "customThemePath": "/path/to/your/custom.css" }

Replace "/path/to/your/custom.css" with the file path of your CSS file. Save the changes and reload the Jupyter Notebook page.

With these customization options, you can make the dark theme in Jupyter Notebook truly your own and create a comfortable and productive environment for your coding work.

Pros and Cons of Using Dark Theme

Using a dark theme in Jupyter Notebook can have both advantages and disadvantages. Here are some of the most commonly cited pros and cons:

Pros:

  1. Reduced eye strain: Many users find that a dark background with light text is easier on the eyes than a light background with dark text. This is especially true in low-light environments or when working for long periods of time.

  2. Improved focus: A dark theme can help to minimize distractions and improve focus by reducing visual clutter.

  3. Aesthetic appeal: For some users, the dark theme simply looks better than the default light theme.

Cons:

  1. Reduced readability: Some users may find that light text on a dark background is harder to read than dark text on a light background, especially if the contrast is not high enough.

  2. Compatibility issues: Some third-party libraries or tools may not be optimized for use with a dark theme, which can result in compatibility issues.

  3. Personal preference: Ultimately, whether or not to use a dark theme is a matter of personal preference. While many users prefer the dark theme, others may find it distracting or unappealing.

It's worth noting that the pros and cons of using a dark theme will vary depending on the individual user and their specific needs and preferences. If you're considering using a dark theme in Jupyter Notebook, it's a good idea to try it out and see how it works for you.

Ultimately, whether or not to use a dark theme is a matter of personal preference. However, many users find that a dark theme can improve readability, reduce eye strain, and improve focus. By enabling and customizing the dark theme in Jupyter Notebook, you can create a comfortable and productive environment for your coding work.

If you're considering using a dark theme in Jupyter Notebook, we encourage you to give it a try and see how it works for you. With the customization options available, you can create a dark theme that is tailored to your specific needs and preferences.

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Ruslan Osipov
Written by author: Ruslan Osipov