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theme-configuration
Theme configuration
Configuration
/api/themes/configuration
4

import APITable from '@site/src/components/APITable';

This configuration applies to all main themes.

Common {#common}

Color mode {#color-mode---dark-mode}

The classic theme provides by default light and dark mode support, with a navbar switch for the user.

It is possible to customize the color mode support within the colorMode object.

Accepted fields:

<APITable>
Name Type Default Description
defaultMode 'light' | 'dark' 'light' The color mode when user first visits the site.
disableSwitch boolean false Hides the switch in the navbar. Useful if you want to support a single color mode.
respectPrefersColorScheme boolean false Whether to use the prefers-color-scheme media-query, using user system preferences, instead of the hardcoded defaultMode.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    // highlight-start
    colorMode: {
      defaultMode: 'light',
      disableSwitch: false,
      respectPrefersColorScheme: false,
    },
    // highlight-end
  },
};

:::caution

With respectPrefersColorScheme: true, the defaultMode is overridden by user system preferences.

If you only want to support one color mode, you likely want to ignore user system preferences.

:::

Meta image {#meta-image}

You can configure a default image that will be used for your meta tag, in particular og:image and twitter:image.

Accepted fields:

<APITable>
Name Type Default Description
image string undefined The meta image URL for the site. Relative to your site's "static" directory. Cannot be SVGs. Can be external URLs too.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    // highlight-next-line
    image: 'img/docusaurus.png',
  },
};

Metadata {#metadata}

You can configure additional HTML metadata (and override existing ones).

Accepted fields:

<APITable>
Name Type Default Description
metadata Metadata[] [] Any field will be directly passed to the <meta /> tag. Possible fields include id, name, property, content, itemprop, etc.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    // highlight-next-line
    metadata: [{name: 'twitter:card', content: 'summary'}],
  },
};

Announcement bar {#announcement-bar}

Sometimes you want to announce something in your website. Just for such a case, you can add an announcement bar. This is a non-fixed and optionally dismissible panel above the navbar. All configuration are in the announcementBar object.

Accepted fields:

<APITable name="announcement-bar">
Name Type Default Description
id string 'announcement-bar' Any value that will identify this message.
content string '' The text content of the announcement. HTML will be interpolated.
backgroundColor string '#fff' Background color of the entire bar.
textColor string '#000' Announcement text color.
isCloseable boolean true Whether this announcement can be dismissed with a '×' button.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    // highlight-start
    announcementBar: {
      id: 'support_us',
      content:
        'We are looking to revamp our docs, please fill <a target="_blank" rel="noopener noreferrer" href="#">this survey</a>',
      backgroundColor: '#fafbfc',
      textColor: '#091E42',
      isCloseable: false,
    },
    // highlight-end
  },
};

Navbar {#navbar}

Accepted fields:

<APITable name="navbar-overview">
Name Type Default Description
title string undefined Title for the navbar.
logo See below undefined Customization of the logo object.
items NavbarItem[] [] A list of navbar items. See specification below.
hideOnScroll boolean false Whether the navbar is hidden when the user scrolls down.
style 'primary' | 'dark' Same as theme Sets the navbar style, ignoring the dark/light theme.
</APITable>

Navbar logo {#navbar-logo}

The logo can be placed in static folder. Logo URL is set to base URL of your site by default. Although you can specify your own URL for the logo, if it is an external link, it will open in a new tab. In addition, you can override a value for the target attribute of logo link, it can come in handy if you are hosting docs website in a subdirectory of your main website, and in which case you probably do not need a link in the logo to the main website will open in a new tab.

To improve dark mode support, you can also set a different logo for this mode.

Accepted fields:

<APITable name="navbar-logo">
Name Type Default Description
alt string undefined Alt tag for the logo image.
src string Required URL to the logo image. Base URL is appended by default.
srcDark string logo.src An alternative image URL to use in dark mode.
href string siteConfig.baseUrl Link to navigate to when the logo is clicked.
width string | number undefined Specifies the width attribute.
height string | number undefined Specifies the height attribute.
target string Calculated based on href (external links will open in a new tab, all others in the current one). The target attribute of the link; controls whether the link is opened in a new tab, the current one, or otherwise.
className string undefined CSS class applied to the image.
style object undefined CSS inline style object. React/JSX flavor, using camelCase properties.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      title: 'Site Title',
      // highlight-start
      logo: {
        alt: 'Site Logo',
        src: 'img/logo.svg',
        srcDark: 'img/logo_dark.svg',
        href: 'https://docusaurus.io/',
        target: '_self',
        width: 32,
        height: 32,
        className: 'custom-navbar-logo-class',
        style: {border: 'solid red'},
      },
      // highlight-end
    },
  },
};

Navbar items {#navbar-items}

You can add items to the navbar via themeConfig.navbar.items.

module.exports = {
  themeConfig: {
    navbar: {
      // highlight-start
      items: [
        {
          type: 'doc',
          position: 'left',
          docId: 'introduction',
          label: 'Docs',
        },
        {to: 'blog', label: 'Blog', position: 'left'},
        {
          type: 'docsVersionDropdown',
          position: 'right',
        },
        {
          type: 'localeDropdown',
          position: 'right',
        },
        {
          href: 'https://github.com/facebook/docusaurus',
          position: 'right',
          className: 'header-github-link',
          'aria-label': 'GitHub repository',
        },
      ],
      // highlight-end
    },
  },
};

The items can have different behaviors based on the type field. The sections below will introduce you to all the types of navbar items available.

Navbar link {#navbar-link}

By default, Navbar items are regular links (internal or external).

React Router should automatically apply active link styling to links, but you can use activeBasePath in edge cases. For cases in which a link should be active on several different paths (such as when you have multiple doc folders under the same sidebar), you can use activeBaseRegex. activeBaseRegex is a more flexible alternative to activeBasePath and takes precedence over it -- Docusaurus parses it into a regular expression that is tested against the current URL.

Outbound (external) links automatically get target="_blank" rel="noopener noreferrer" attributes.

Accepted fields:

<APITable name="navbar-link">
Name Type Default Description
type 'default' Optional Sets the type of this item to a link.
label string Required The name to be shown for this item.
html string Optional Same as label, but renders pure HTML instead of text content.
to string Required Client-side routing, used for navigating within the website. The baseUrl will be automatically prepended to this value.
href string Required A full-page navigation, used for navigating outside of the website. Only one of to or href should be used.
prependBaseUrlToHref boolean false Prepends the baseUrl to href values.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
activeBasePath string to / href To apply the active class styling on all routes starting with this path. This usually isn't necessary.
activeBaseRegex string undefined Alternative to activeBasePath if required.
className string '' Custom CSS class (for styling any item).
</APITable>

:::note

In addition to the fields above, you can specify other arbitrary attributes that can be applied to a HTML link.

:::

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          to: 'docs/introduction',
          // Only one of "to" or "href" should be used
          // href: 'https://www.facebook.com',
          label: 'Introduction',
          // Only one of "label" or "html" should be used
          // html: '<b>Introduction</b>'
          position: 'left',
          activeBaseRegex: 'docs/(next|v8)',
          target: '_blank',
        },
        // highlight-end
      ],
    },
  },
};

Navbar dropdown {#navbar-dropdown}

Navbar items of the type dropdown has the additional items field, an inner array of navbar items.

Navbar dropdown items only accept the following "link-like" item types:

Note that the dropdown base item is a clickable link as well, so this item can receive any of the props of a plain navbar link.

Accepted fields:

<APITable name="navbar-dropdown">
Name Type Default Description
type 'dropdown' Optional Sets the type of this item to a dropdown.
label string Required The name to be shown for this item.
items LinkLikeItem[] Required The items to be contained in the dropdown.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'dropdown',
          label: 'Community',
          position: 'left',
          items: [
            {
              label: 'Facebook',
              href: 'https://www.facebook.com',
            },
            {
              type: 'doc',
              label: 'Social',
              docId: 'social',
            },
            // ... more items
          ],
        },
        // highlight-end
      ],
    },
  },
};

Navbar doc link {#navbar-doc-link}

If you want to link to a specific doc, this special navbar item type will render the link to the doc of the provided docId. It will get the class navbar__link--active as long as you browse a doc of the same sidebar.

Accepted fields:

<APITable name="navbar-doc-link">
Name Type Default Description
type 'doc' Required Sets the type of this item to a doc link.
docId string Required The ID of the doc that this item links to.
label string docId The name to be shown for this item.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
docsPluginId string 'default' The ID of the docs plugin that the doc belongs to.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'doc',
          position: 'left',
          docId: 'introduction',
          label: 'Docs',
        },
        // highlight-end
      ],
    },
  },
};

Navbar linked to a sidebar {#navbar-doc-sidebar}

You can link a navbar item to the first document link (which can be a doc link or a generated category index) of a given sidebar without having to hardcode a doc ID.

Accepted fields:

<APITable name="navbar-doc-sidebar">
Name Type Default Description
type 'docSidebar' Required Sets the type of this navbar item to a sidebar's first document.
sidebarId string Required The ID of the sidebar that this item is linked to.
label string First document link's sidebar label The name to be shown for this item.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
docsPluginId string 'default' The ID of the docs plugin that the sidebar belongs to.
</APITable>

:::tip

Use this navbar item type if your sidebar is updated often and the order is not stable.

:::

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'docSidebar',
          position: 'left',
          sidebarId: 'api',
          label: 'API',
        },
        // highlight-end
      ],
    },
  },
};
module.exports = {
  tutorial: [
    {
      type: 'autogenerated',
      dirName: 'guides',
    },
  ],
  api: [
    // highlight-next-line
    'cli', // The navbar item will be linking to this doc
    'docusaurus-core',
    {
      type: 'autogenerated',
      dirName: 'api',
    },
  ],
};

Navbar docs version dropdown {#navbar-docs-version-dropdown}

If you use docs with versioning, this special navbar item type that will render a dropdown with all your site's available versions.

The user will be able to switch from one version to another, while staying on the same doc (as long as the doc ID is constant across versions).

Accepted fields:

<APITable name="navbar-docs-version-dropdown">
Name Type Default Description
type 'docsVersionDropdown' Required Sets the type of this item to a docs version dropdown.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
dropdownItemsBefore LinkLikeItem[] [] Add additional dropdown items at the beginning of the dropdown.
dropdownItemsAfter LinkLikeItem[] [] Add additional dropdown items at the end of the dropdown.
docsPluginId string 'default' The ID of the docs plugin that the doc versioning belongs to.
dropdownActiveClassDisabled boolean false Do not add the link active class when browsing docs.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'docsVersionDropdown',
          position: 'left',
          dropdownItemsAfter: [{to: '/versions', label: 'All versions'}],
          dropdownActiveClassDisabled: true,
        },
        // highlight-end
      ],
    },
  },
};

Navbar docs version {#navbar-docs-version}

If you use docs with versioning, this special navbar item type will link to the active/browsed version of your doc (depends on the current URL), and fallback to the latest version.

Accepted fields:

<APITable name="navbar-docs-version">
Name Type Default Description
type 'docsVersion' Required Sets the type of this item to a doc version link.
label string The active/latest version label. The name to be shown for this item.
to string The active/latest version. The internal link that this item points to.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
docsPluginId string 'default' The ID of the docs plugin that the doc versioning belongs to.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'docsVersion',
          position: 'left',
          to: '/path',
          label: 'label',
        },
        // highlight-end
      ],
    },
  },
};

Navbar locale dropdown {#navbar-locale-dropdown}

If you use the i18n feature, this special navbar item type will render a dropdown with all your site's available locales.

The user will be able to switch from one locale to another, while staying on the same page.

Accepted fields:

<APITable name="navbar-locale-dropdown">
Name Type Default Description
type 'localeDropdown' Required Sets the type of this item to a locale dropdown.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
dropdownItemsBefore LinkLikeItem[] [] Add additional dropdown items at the beginning of the dropdown.
dropdownItemsAfter LinkLikeItem[] [] Add additional dropdown items at the end of the dropdown.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'localeDropdown',
          position: 'left',
          dropdownItemsAfter: [
            {
              to: 'https://my-site.com/help-us-translate',
              label: 'Help us translate',
            },
          ],
        },
        // highlight-end
      ],
    },
  },
};

Navbar search {#navbar-search}

If you use the search, the search bar will be the rightmost element in the navbar.

However, with this special navbar item type, you can change the default location.

<APITable name="navbar-search">
Name Type Default Description
type 'search' Required Sets the type of this item to a search bar.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
className string / Custom CSS class for this navbar item.
</APITable>
module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'search',
          position: 'right',
        },
        // highlight-end
      ],
    },
  },
};

Navbar with custom HTML {#navbar-with-custom-html}

You can also render your own HTML markup inside a navbar item using this navbar item type.

<APITable name="navbar-html">
Name Type Default Description
type 'html' Required Sets the type of this item to a HTML element.
position 'left' | 'right' 'left' The side of the navbar this item should appear on.
className string '' Custom CSS class for this navbar item.
value string '' Custom HTML to be rendered inside this navbar item.
</APITable>
module.exports = {
  themeConfig: {
    navbar: {
      items: [
        // highlight-start
        {
          type: 'html',
          position: 'right',
          value: '<button>Give feedback</button>',
        },
        // highlight-end
      ],
    },
  },
};

Auto-hide sticky navbar {#auto-hide-sticky-navbar}

You can enable this cool UI feature that automatically hides the navbar when a user starts scrolling down the page, and show it again when the user scrolls up.

module.exports = {
  themeConfig: {
    navbar: {
      // highlight-next-line
      hideOnScroll: true,
    },
  },
};

Navbar style {#navbar-style}

You can set the static Navbar style without disabling the theme switching ability. The selected style will always apply no matter which theme user have selected.

Currently, there are two possible style options: dark and primary (based on the --ifm-color-primary color). You can see the styles preview in the Infima documentation.

module.exports = {
  themeConfig: {
    navbar: {
      // highlight-next-line
      style: 'primary',
    },
  },
};

CodeBlock {#codeblock}

Docusaurus uses Prism React Renderer to highlight code blocks. All configuration are in the prism object.

Accepted fields:

<APITable name="codeblock">
Name Type Default Description
theme PrismTheme palenight The Prism theme to use for light-theme code blocks.
darkTheme PrismTheme palenight The Prism theme to use for dark-theme code blocks.
defaultLanguage string undefined The side of the navbar this item should appear on.
magicComments MagicCommentConfig[] see below The list of magic comments.
</APITable>
type MagicCommentConfig = {
  className: string;
  line?: string;
  block?: {start: string; end: string};
};
const defaultMagicComments = [
  {
    className: 'theme-code-block-highlighted-line',
    line: 'highlight-next-line',
    block: {start: 'highlight-start', end: 'highlight-end'},
  },
];

Theme {#theme}

By default, we use Palenight as syntax highlighting theme. You can specify a custom theme from the list of available themes. You may also use a different syntax highlighting theme when the site is in dark mode.

Example configuration:

module.exports = {
  themeConfig: {
    prism: {
      // highlight-start
      theme: require('prism-react-renderer/themes/github'),
      darkTheme: require('prism-react-renderer/themes/dracula'),
      // highlight-end
    },
  },
};

:::note

If you use the line highlighting Markdown syntax, you might need to specify a different highlight background color for the dark mode syntax highlighting theme. Refer to the docs for guidance.

:::

Default language {#default-language}

You can set a default language for code blocks if no language is added after the opening triple backticks (i.e. ```). Note that a valid language name must be passed.

Example configuration:

module.exports = {
  themeConfig: {
    prism: {
      // highlight-next-line
      defaultLanguage: 'javascript',
    },
  },
};

Footer {#footer-1}

You can add logo and a copyright to the footer via themeConfig.footer. Logo can be placed in static folder. Logo URL works in the same way of the navbar logo.

Accepted fields:

<APITable name="footer">
Name Type Default Description
logo Logo undefined Customization of the logo object. See Navbar logo for details.
copyright string undefined The copyright message to be displayed at the bottom.
style 'dark' | 'light' 'light' The color theme of the footer component.
links (Column | FooterLink)[] [] The link groups to be present.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    // highlight-start
    footer: {
      logo: {
        alt: 'Meta Open Source Logo',
        src: 'img/meta_oss_logo.png',
        href: 'https://opensource.fb.com',
        width: 160,
        height: 51,
      },
      copyright: `Copyright © ${new Date().getFullYear()} My Project, Inc. Built with Docusaurus.`,
    },
    // highlight-end
  },
};

Footer Links {#footer-links}

You can add links to the footer via themeConfig.footer.links. There are two types of footer configurations: multi-column footers and simple footers.

Multi-column footer links have a title and a list of FooterItems for each column.

<APITable name="footer-links">
Name Type Default Description
title string undefined Label of the section of these links.
items FooterItem[] [] Links in this section.
</APITable>

Accepted fields of each FooterItem:

<APITable name="footer-items">
Name Type Default Description
label string Required Text to be displayed for this link.
to string Required Client-side routing, used for navigating within the website. The baseUrl will be automatically prepended to this value.
href string Required A full-page navigation, used for navigating outside of the website. Only one of to or href should be used.
html string undefined Renders the HTML pass-through instead of a simple link. In case html is used, no other options should be provided.
</APITable>

Example multi-column configuration:

module.exports = {
  footer: {
    // highlight-start
    links: [
      {
        title: 'Docs',
        items: [
          {
            label: 'Style Guide',
            to: 'docs/',
          },
          {
            label: 'Second Doc',
            to: 'docs/doc2/',
          },
        ],
      },
      {
        title: 'Community',
        items: [
          {
            label: 'Stack Overflow',
            href: 'https://stackoverflow.com/questions/tagged/docusaurus',
          },
          {
            label: 'Discord',
            href: 'https://discordapp.com/invite/docusaurus',
          },
          {
            label: 'Twitter',
            href: 'https://twitter.com/docusaurus',
          },
          {
            html: `
                <a href="https://www.netlify.com" target="_blank" rel="noreferrer noopener" aria-label="Deploys by Netlify">
                  <img src="https://www.netlify.com/img/global/badges/netlify-color-accent.svg" alt="Deploys by Netlify" width="114" height="51" />
                </a>
              `,
          },
        ],
      },
    ],
    // highlight-end
  },
};

A simple footer just has a list of FooterItems displayed in a row.

Example simple configuration:

module.exports = {
  footer: {
    // highlight-start
    links: [
      {
        label: 'Stack Overflow',
        href: 'https://stackoverflow.com/questions/tagged/docusaurus',
      },
      {
        label: 'Discord',
        href: 'https://discordapp.com/invite/docusaurus',
      },
      {
        label: 'Twitter',
        href: 'https://twitter.com/docusaurus',
      },
      {
        html: `
            <a href="https://www.netlify.com" target="_blank" rel="noreferrer noopener" aria-label="Deploys by Netlify">
              <img src="https://www.netlify.com/img/global/badges/netlify-color-accent.svg" alt="Deploys by Netlify" width="114" height="51" />
            </a>
          `,
      },
    ],
    // highlight-end
  },
};

Table of Contents {#table-of-contents}

You can adjust the default table of contents via themeConfig.tableOfContents.

<APITable>
Name Type Default Description
minHeadingLevel number 2 The minimum heading level shown in the table of contents. Must be between 2 and 6 and lower or equal to the max value.
maxHeadingLevel number 3 Max heading level displayed in the TOC. Should be an integer between 2 and 6.
</APITable>

Example configuration:

module.exports = {
  themeConfig: {
    // highlight-start
    tableOfContents: {
      minHeadingLevel: 2,
      maxHeadingLevel: 5,
    },
    // highlight-end
  },
};

Hooks {#hooks}

useColorMode {#use-color-mode}

A React hook to access the color context. This context contains functions for setting light and dark mode and exposes boolean variable, indicating which mode is currently in use.

Usage example:

import React from 'react';
// highlight-next-line
import {useColorMode} from '@docusaurus/theme-common';

const Example = () => {
  // highlight-next-line
  const {colorMode, setColorMode} = useColorMode();

  return <h1>Dark mode is now {colorMode === 'dark' ? 'on' : 'off'}</h1>;
};

:::note

The component calling useColorMode must be a child of the Layout component.

function ExamplePage() {
  return (
    <Layout>
      <Example />
    </Layout>
  );
}

:::

i18n {#i18n}

Read the i18n introduction first.

Translation files location {#translation-files-location}

  • Base path: website/i18n/[locale]/docusaurus-theme-[themeName]
  • Multi-instance path: N/A
  • JSON files: extracted with docusaurus write-translations
  • Markdown files: N/A

Example file-system structure {#example-file-system-structure}

website/i18n/[locale]/docusaurus-theme-classic
│
│ # translations for the theme
├── navbar.json
└── footer.json