Mercury

Mercury is a component-based Drupal theme built with Tailwind CSS, providing a modern and flexible starting point for site owners to build scalable and efficient websites using Drupal Canvas.

Getting started

To use Mercury, you can install it via Composer, like any other Drupal theme. But Mercury is designed to be copied, rather than used as a contributed theme or base theme, and you should not assume that future updates will be compatible with your site.

To create the clone to use for your site, use Drupal core's starter kit tool:

cd drupal/web
php core/scripts/drupal generate-theme my_theme --name="My Custom Theme" --description="A customized version of Mercury." --starterkit=mercury

This will create a copy of Mercury called my_theme, and place it in themes/my_theme. This theme is yours, and you can customize it in any way you see fit!

To install it in Drupal, either visit the /admin/appearance page, or run drush theme:enable my_theme at the command line.

You can then remove the contributed version via Composer with composer remove drupal/mercury.

Sub-theming

Don't create your custom theme as a sub-theme of Mercury. Mercury is meant to be used as a starter kit, and does not provide backward compatibility. This allows us to rapidly innovate, iterate, and improve. If you create a sub-theme of Mercury, it is likely to break in the future.

For more technical information about how to build a custom theme based on Mercury, see the project README.

Getting help

If you have trouble or questions, please visit the issue queue or find us on Drupal Slack, in the #drupal-cms-support channel.

Roadmap

Mercury is under active development. Planned improvements include more components, better customization options, and Storybook support. If you want to contribute to Mercury, check out the #drupal-cms-development channel in Drupal Slack.