personalize your experience with marimo

# Install motheme CLI tool
pip install motheme

# Help messages
motheme

# Initialize themes
motheme update

# List available themes
motheme themes

# Apply a theme to specific files
motheme apply coldme notebook1.py notebook2.py

# Or, apply theme recursively in a directory
motheme apply -r coldme ./

You can also add motheme as a uv tool

# install motheme as a uv tool
uv tool install motheme

# use motheme
uvx motheme <command>

• Requirements: Ensure you are using Marimo version 0.9.14 or higher. It is recommended to keep your Marimo version up-to-date for the best experience.

• Light and Dark Mode Support: All themes support both light and dark modes and will switch automatically based on your notebook's current theme settings.

To contribute your own themes, please follow these guidelines:

• Refer to Default Arguments: All available arguments are listed in default.css, which serves as a reference for writing your themes. You can experiment with other arguments, but please note that stability cannot be guaranteed with untested changes.

• Light and Dark Themes: Implement both light and dark themes using the light-dark syntax as demonstrated in default.css. If you choose not to implement a theme for a specific mode, name your theme as xxx_light or xxx_dark and use the default values for the respective mode from default.css.

• Folder Structure: After finishing your CSS file, create a new folder inside themes with the name of your theme. Within this folder, upload the following:

  • The CSS file
  • Preview images
  • An optional README.md file to illustrate your design

• Design Using Sample: You can design your theme using the sample.py file provided in the repository. This file helps visualize how your theme will look in the Marimo notebook.