diff --git a/LICENSE b/LICENSE
index 5e3df793ca8..385b09dbf08 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2023 [Astro contributors](https://github.com/withastro/starbook/graphs/contributors)
+Copyright (c) 2023 [Astro contributors](https://github.com/withastro/starlight/graphs/contributors)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/docs/README.md b/docs/README.md
index 998403428ea..ff08cbf6dd2 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,9 +1,9 @@
-# StarBook Docs
+# Starlight Docs
 
-This directory contains the StarBook documentation website (built with StarBook!)
+This directory contains the Starlight documentation website (built with Starlight!)
 
-[![Open in StackBlitz](https://developer.stackblitz.com/img/open_in_stackblitz.svg)](https://stackblitz.com/github/withastro/starbook/tree/main/docs)
-[![Open with CodeSandbox](https://assets.codesandbox.io/github/button-edit-lime.svg)](https://codesandbox.io/p/sandbox/github/withastro/starbook/tree/main/docs)
+[![Open in StackBlitz](https://developer.stackblitz.com/img/open_in_stackblitz.svg)](https://stackblitz.com/github/withastro/starlight/tree/main/docs)
+[![Open with CodeSandbox](https://assets.codesandbox.io/github/button-edit-lime.svg)](https://codesandbox.io/p/sandbox/github/withastro/starlight/tree/main/docs)
 
 ## 🧞 Commands
 
diff --git a/docs/astro.config.mjs b/docs/astro.config.mjs
index 3ad9a5fcee8..f8c0786f70f 100644
--- a/docs/astro.config.mjs
+++ b/docs/astro.config.mjs
@@ -1,13 +1,13 @@
 import { defineConfig } from 'astro/config';
-import starbook from 'starbook';
+import starlight from 'starlight';
 
 // https://astro.build/config
 export default defineConfig({
   integrations: [
-    starbook({
-      title: 'StarBook Docs',
+    starlight({
+      title: 'Starlight Docs',
       editLink: {
-        baseUrl: 'https://github.com/withastro/starbook/edit/main/docs/',
+        baseUrl: 'https://github.com/withastro/starlight/edit/main/docs/',
       },
       locales: {
         root: {
diff --git a/docs/package.json b/docs/package.json
index 40dbee65361..ac1301cb111 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "starbook-docs",
+  "name": "starlight-docs",
   "private": true,
   "type": "module",
   "version": "0.0.1",
@@ -12,6 +12,6 @@
   },
   "dependencies": {
     "astro": "^2.1.7",
-    "starbook": "workspace:*"
+    "starlight": "workspace:*"
   }
 }
diff --git a/docs/src/content/config.ts b/docs/src/content/config.ts
index 2271861924d..62061bde09b 100644
--- a/docs/src/content/config.ts
+++ b/docs/src/content/config.ts
@@ -1,5 +1,5 @@
 import { defineCollection } from 'astro:content';
-import { docsSchema } from 'starbook/schema';
+import { docsSchema } from 'starlight/schema';
 
 export const collections = {
   docs: defineCollection({
diff --git a/docs/src/content/docs/getting-started.md b/docs/src/content/docs/getting-started.md
index d989a065258..64d872558e3 100644
--- a/docs/src/content/docs/getting-started.md
+++ b/docs/src/content/docs/getting-started.md
@@ -2,22 +2,22 @@
 title: Getting Started
 ---
 
-Welcome to StarBook, an intuitive and user-friendly website builder that allows you to easily create and manage your documentation website. In this introductory guide, we will explore the main features and benefits of StarBook.
+Welcome to Starlight, an intuitive and user-friendly website builder that allows you to easily create and manage your documentation website. In this introductory guide, we will explore the main features and benefits of Starlight.
 
-## Getting Started with StarBook
+## Getting Started with Starlight
 
-To get started with StarBook, you will first need to install it. StarBook is built on top of the [Astro](https://astro.build) all-in-one framework, which means you will also need to install Astro before installing StarBook. Once both are installed, you can create a new StarBook project using the following command:
+To get started with Starlight, you will first need to install it. Starlight is built on top of the [Astro](https://astro.build) all-in-one framework, which means you will also need to install Astro before installing Starlight. Once both are installed, you can create a new Starlight project using the following command:
 
 ```sh
 # create a new project with npm
-npm create astro --template starbook
+npm create astro --template starlight
 ```
 
 This will create a new project directory with all the necessary files and configurations for your documentation website.
 
-## Creating Content with StarBook
+## Creating Content with Starlight
 
-StarBook supports authoring content in Markdown and MDX, which means you can write your documentation using a simple and easy-to-learn syntax. You can also use a range of features and components supported by Docusaurus, GitBook, VitePress, MkDocs, Nextra, and Sphinx, including:
+Starlight supports authoring content in Markdown and MDX, which means you can write your documentation using a simple and easy-to-learn syntax. You can also use a range of features and components supported by Docusaurus, GitBook, VitePress, MkDocs, Nextra, and Sphinx, including:
 
 - Syntax highlighting for code blocks
 - Tables and lists
@@ -28,14 +28,14 @@ StarBook supports authoring content in Markdown and MDX, which means you can wri
 
 With these features, you can create rich and engaging documentation that is easy to read and understand.
 
-### Customizing Your StarBook Website
+### Customizing Your Starlight Website
 
-One of the main benefits of StarBook is its flexibility and customization options. You can easily customize your website's layout, theme, and styling using the Astro framework's built-in tools and features. For example, you can customize your website's color scheme, fonts, and typography, as well as add custom components and plugins.
+One of the main benefits of Starlight is its flexibility and customization options. You can easily customize your website's layout, theme, and styling using the Astro framework's built-in tools and features. For example, you can customize your website's color scheme, fonts, and typography, as well as add custom components and plugins.
 
-### Deploying Your StarBook Website
+### Deploying Your Starlight Website
 
-Once you have created and customized your StarBook website, you can deploy it to a web server or hosting platform of your choice. Astro provides built-in support for several popular hosting platforms, including Netlify and Vercel, which means you can deploy your website with just a few simple commands.
+Once you have created and customized your Starlight website, you can deploy it to a web server or hosting platform of your choice. Astro provides built-in support for several popular hosting platforms, including Netlify and Vercel, which means you can deploy your website with just a few simple commands.
 
 ## Conclusion
 
-StarBook is a powerful and flexible website builder that makes it easy to create and manage your documentation website. With support for Markdown and MDX, as well as a range of features and components, you can create rich and engaging content that is easy to read and understand. So why not give StarBook a try today and see how it can help you take your documentation to the next level!
+Starlight is a powerful and flexible website builder that makes it easy to create and manage your documentation website. With support for Markdown and MDX, as well as a range of features and components, you can create rich and engaging content that is easy to read and understand. So why not give Starlight a try today and see how it can help you take your documentation to the next level!
diff --git a/docs/src/content/docs/guides/i18n.md b/docs/src/content/docs/guides/i18n.md
index a6f48ffccc4..d1b71eeb692 100644
--- a/docs/src/content/docs/guides/i18n.md
+++ b/docs/src/content/docs/guides/i18n.md
@@ -2,20 +2,20 @@
 title: Internationalization (i18n)
 ---
 
-StarBook provides built-in support for multilingual sites.
+Starlight provides built-in support for multilingual sites.
 
 ## Configure i18n
 
-1. Tell StarBook about the languages you support by passing a `locales` object to the StarBook integration:
+1. Tell Starlight about the languages you support by passing a `locales` object to the Starlight integration:
 
    ```js
    // astro.config.mjs
    import { defineConfig } from 'astro/config';
-   import starbook from 'starbook';
+   import starlight from 'starlight';
 
    export default defineConfig({
      integrations: [
-       starbook({
+       starlight({
          // Set English as the default language for this site.
          defaultLocale: 'en',
          locales: {
diff --git a/docs/src/content/docs/index.mdx b/docs/src/content/docs/index.mdx
index 68a0b347c5f..910a195e4ac 100644
--- a/docs/src/content/docs/index.mdx
+++ b/docs/src/content/docs/index.mdx
@@ -2,7 +2,7 @@
 title: Welcome, world
 ---
 
-My docs are built with StarBook.
+My docs are built with Starlight.
 
 :::tip[Did you know?]
 Astro helps you build faster websites with [“Islands Architecture”](https://docs.astro.build/en/concepts/islands/).
diff --git a/docs/src/content/docs/reference/configuration.md b/docs/src/content/docs/reference/configuration.md
index 53ba874699f..b0385718317 100644
--- a/docs/src/content/docs/reference/configuration.md
+++ b/docs/src/content/docs/reference/configuration.md
@@ -2,9 +2,9 @@
 title: Configuration Reference
 ---
 
-## Configure the `starbook` integration
+## Configure the `starlight` integration
 
-You can pass the following options to the `starbook` integration.
+You can pass the following options to the `starlight` integration.
 
 ### `title` (required)
 
@@ -29,17 +29,17 @@ Configure the table of contents shown on the right of each page. By default, `<h
 
 **type:** `{ baseUrl: string }`
 
-Enable “Edit this page” links by setting the base URL these should use. The final link will be `editLink.baseUrl` + the current page path. For example, to enable editing pages in the `withastro/starbook` repo on GitHub:
+Enable “Edit this page” links by setting the base URL these should use. The final link will be `editLink.baseUrl` + the current page path. For example, to enable editing pages in the `withastro/starlight` repo on GitHub:
 
 ```js
-starbook({
+starlight({
   editLink: {
-    baseUrl: 'https://github.com/withastro/starbook/edit/main/',
+    baseUrl: 'https://github.com/withastro/starlight/edit/main/',
   },
 });
 ```
 
-With this config, a `/introduction` page would have an edit link pointing to `https://github.com/withastro/starbook/edit/main/src/docs/introduction.md`.
+With this config, a `/introduction` page would have an edit link pointing to `https://github.com/withastro/starlight/edit/main/src/docs/introduction.md`.
 
 ### `sidebar`
 
@@ -52,7 +52,7 @@ A sidebar is an array of groups, each with a `label` for the group and either an
 You can manually set the contents of a group using `items`, which is an array that can include links and subgroups. You can also automatically generate the contents of a group from a specific directory of your docs, using `autogenerate`.
 
 ```js
-starbook({
+starlight({
   sidebar: [
     // A group labelled “Start Here” containing two links.
     {
@@ -109,11 +109,11 @@ Each entry should use the directory where that language’s files are saved as t
 ```js
 // astro.config.mjs
 import { defineConfig } from 'astro/config';
-import starbook from 'starbook';
+import starlight from 'starlight';
 
 export default defineConfig({
   integrations: [
-    starbook({
+    starlight({
       // Set English as the default language for this site.
       defaultLocale: 'en',
       locales: {
@@ -164,7 +164,7 @@ The writing direction of this language; `"ltr"` for left-to-right (the default)
 You can serve the default language without a `/lang/` directory by setting a `root` locale:
 
 ```js
-starbook({
+starlight({
   locales: {
     root: {
       label: 'English',
@@ -194,7 +194,7 @@ The default locale will be used to provide fallback content where translations a
 Optional details about the social media accounts for this site.
 
 ```js
-starbook({
+starlight({
   social: {
     // Main Twitter handle for this site
     twitter: 'astrodotbuild',
@@ -204,12 +204,12 @@ starbook({
 
 ### `customCss`
 
-Provide CSS files to customize the look and feel of StarBook.
+Provide CSS files to customize the look and feel of your Starlight site.
 
 Supports local CSS files relative to the root of your project, e.g. `'/src/custom.css'`, and CSS you installed as an npm module, e.g. `'@fontsource/roboto'`.
 
 ```js
-starbook({
+starlight({
   customCss: ['/src/custom-styles.css', '@fontsource/roboto'],
 });
 ```
diff --git a/docs/src/content/docs/reference/markdown-syntax.md b/docs/src/content/docs/reference/markdown-syntax.md
index bc5c734c104..4d01e4252f4 100644
--- a/docs/src/content/docs/reference/markdown-syntax.md
+++ b/docs/src/content/docs/reference/markdown-syntax.md
@@ -2,7 +2,7 @@
 title: Markdown Syntax
 ---
 
-StarBook supports the full range of Markdown syntax.
+Starlight supports the full range of Markdown syntax.
 
 ## Inline styles
 
@@ -54,27 +54,27 @@ You can structure content using a heading. Headings in Markdown are indicated by
 
 Asides (also known as “admonitions” or “callouts”) are useful for displaying secondary information alongside a page’s main content.
 
-StarBook provides a custom Markdown syntax for rendering asides. Aside blocks are indicated using a triple colon `:::` and can be of type `note`, `tip`, `caution` or `danger`.
+Starlight provides a custom Markdown syntax for rendering asides. Aside blocks are indicated using a triple colon `:::` and can be of type `note`, `tip`, `caution` or `danger`.
 
 You can nest any other Markdown content types inside an aside, but asides are best suited to short and concise chunks of content.
 
 ### Note aside
 
 :::note
-StarBook is a documentation website toolkit built with [Astro](https://astro.build/). You can get started with this command:
+Starlight is a documentation website toolkit built with [Astro](https://astro.build/). You can get started with this command:
 
 ```sh
-npm run create astro@latest --template starbook
+npm run create astro@latest --template starlight
 ```
 
 :::
 
 ````md
 :::note
-StarBook is a documentation website toolkit built with [Astro](https://astro.build/). You can get started with this command:
+Starlight is a documentation website toolkit built with [Astro](https://astro.build/). You can get started with this command:
 
 ```sh
-npm run create astro@latest --template starbook
+npm run create astro@latest --template starlight
 ```
 
 :::
@@ -100,11 +100,11 @@ Caution and danger asides are helpful for drawing a user’s attention to detail
 If you find yourself using these a lot, it may also be a sign that the thing you are documenting could benefit from being redesigned.
 
 :::caution
-If you are not sure you want an awesome docs site, think twice before using [StarBook](../../).
+If you are not sure you want an awesome docs site, think twice before using [Starlight](../../).
 :::
 
 :::danger
-Your users may be more productive and find your product easier to use thanks to helpful StarBook features.
+Your users may be more productive and find your product easier to use thanks to helpful Starlight features.
 
 - Clear navigation
 - User-configurable colour theme
@@ -114,11 +114,11 @@ Your users may be more productive and find your product easier to use thanks to
 
 ```md
 :::caution
-If you are not sure you want an awesome docs site, think twice before using [StarBook](../../).
+If you are not sure you want an awesome docs site, think twice before using [Starlight](../../).
 :::
 
 :::danger
-Your users may be more productive and find your product easier to use thanks to helpful StarBook features.
+Your users may be more productive and find your product easier to use thanks to helpful Starlight features.
 
 - Clear navigation
 - User-configurable colour theme
diff --git a/package.json b/package.json
index 7b1b4e48df9..438f33e5959 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "starbook-root",
+  "name": "starlight-root",
   "private": true,
   "version": "1.0.0",
   "description": "",
diff --git a/packages/starbook/README.md b/packages/starbook/README.md
deleted file mode 100644
index ce0c299a780..00000000000
--- a/packages/starbook/README.md
+++ /dev/null
@@ -1,24 +0,0 @@
-# StarBook
-
-StarBook is a documentation website framework for [Astro][astro].
-
-## Documentation
-
-[Read the StarBook docs][docs] (they’re built with StarBook!)
-
-## Contributing
-
-- [Code of Conduct][coc]
-- [Community Guide][community]
-
-## License
-
-MIT
-
-Copyright (c) 2023–present [StarBook contributors][contributors]
-
-[astro]: https://astro.build/
-[docs]: https://star-book.netlify.app/
-[coc]: https://github.com/withastro/.github/blob/main/CODE_OF_CONDUCT.md
-[community]: https://github.com/withastro/.github/blob/main/COMMUNITY_GUIDE.md
-[contributors]: https://github.com/withastro/starbook/graphs/contributors
diff --git a/packages/starbook/components/SkipLink.astro b/packages/starbook/components/SkipLink.astro
deleted file mode 100644
index 3f3d2ca62bc..00000000000
--- a/packages/starbook/components/SkipLink.astro
+++ /dev/null
@@ -1,18 +0,0 @@
-<a href="#starbook__overview">Skip to content</a>
-
-<style>
-  a {
-    position: fixed;
-    top: 0.75rem;
-    inset-inline-start: 0.75rem;
-  }
-  a:focus {
-    z-index: var(--sb-z-index-skiplink);
-    display: block;
-    padding: 0.5rem 1rem;
-    text-decoration: none;
-    color: var(--sb-color-text-invert);
-    background-color: var(--sb-color-text-accent);
-    box-shadow: var(--sb-shadow-lg);
-  }
-</style>
diff --git a/packages/starbook/style/asides.css b/packages/starbook/style/asides.css
deleted file mode 100644
index 8e9b1030a3f..00000000000
--- a/packages/starbook/style/asides.css
+++ /dev/null
@@ -1,49 +0,0 @@
-.starbook-aside {
-  padding: 1rem;
-  border-inline-start: 0.25rem solid;
-  color: var(--sb-color-white);
-}
-.starbook-aside--note {
-  --sb-color-asides-text-accent: var(--sb-color-blue-high);
-  border-color: var(--sb-color-blue);
-  background-color: var(--sb-color-blue-low);
-}
-.starbook-aside--tip {
-  --sb-color-asides-text-accent: var(--sb-color-purple-high);
-  border-color: var(--sb-color-purple);
-  background-color: var(--sb-color-purple-low);
-}
-.starbook-aside--caution {
-  --sb-color-asides-text-accent: var(--sb-color-orange-high);
-  border-color: var(--sb-color-orange);
-  background-color: var(--sb-color-orange-low);
-}
-.starbook-aside--danger {
-  --sb-color-asides-text-accent: var(--sb-color-red-high);
-  border-color: var(--sb-color-red);
-  background-color: var(--sb-color-red-low);
-}
-
-.starbook-aside__title {
-  display: flex;
-  gap: 0.5rem;
-  align-items: center;
-  font-size: var(--sb-text-h5);
-  font-weight: 600;
-  line-height: var(--sb-line-height-headings);
-  color: var(--sb-color-asides-text-accent);
-}
-
-.starbook-aside__icon {
-  font-size: 1.333em;
-  width: 1em;
-  height: 1em;
-}
-
-.starbook-aside__title + .starbook-aside__content {
-  margin-top: 0.5rem;
-}
-
-.starbook-aside__content a {
-  color: var(--sb-color-asides-text-accent);
-}
diff --git a/packages/starbook/style/props.css b/packages/starbook/style/props.css
deleted file mode 100644
index 95d7026f9ce..00000000000
--- a/packages/starbook/style/props.css
+++ /dev/null
@@ -1,197 +0,0 @@
-:root,
-::backdrop {
-  /* Colors (dark mode) */
-  --sb-color-white: hsl(0, 0%, 100%); /* “white” */
-  --sb-color-gray-1: hsl(231, 23%, 94%);
-  --sb-color-gray-2: hsl(228, 8%, 77%);
-  --sb-color-gray-3: hsl(221, 8%, 56%);
-  --sb-color-gray-4: hsl(225, 9%, 36%);
-  --sb-color-gray-5: hsl(222, 11%, 23%);
-  --sb-color-gray-6: hsl(222, 13%, 16%);
-  --sb-color-black: hsl(223, 13%, 10%);
-
-  --sb-hue-orange: 41;
-  --sb-color-orange-low: hsl(var(--sb-hue-orange), 39%, 22%);
-  --sb-color-orange: hsl(var(--sb-hue-orange), 82%, 63%);
-  --sb-color-orange-high: hsl(var(--sb-hue-orange), 82%, 87%);
-  --sb-hue-green: 101;
-  --sb-color-green-low: hsl(var(--sb-hue-green), 39%, 22%);
-  --sb-color-green: hsl(var(--sb-hue-green), 82%, 63%);
-  --sb-color-green-high: hsl(var(--sb-hue-green), 82%, 87%);
-  --sb-hue-blue: 234;
-  --sb-color-blue-low: hsl(var(--sb-hue-blue), 54%, 20%);
-  --sb-color-blue: hsl(var(--sb-hue-blue), 100%, 60%);
-  --sb-color-blue-high: hsl(var(--sb-hue-blue), 100%, 87%);
-  --sb-hue-purple: 281;
-  --sb-color-purple-low: hsl(var(--sb-hue-purple), 39%, 22%);
-  --sb-color-purple: hsl(var(--sb-hue-purple), 82%, 63%);
-  --sb-color-purple-high: hsl(var(--sb-hue-purple), 82%, 89%);
-  --sb-hue-red: 339;
-  --sb-color-red-low: hsl(var(--sb-hue-red), 39%, 22%);
-  --sb-color-red: hsl(var(--sb-hue-red), 82%, 63%);
-  --sb-color-red-high: hsl(var(--sb-hue-red), 82%, 87%);
-
-  --sb-hue-accent: var(--sb-hue-blue);
-  --sb-color-accent-low: hsl(var(--sb-hue-accent), 54%, 20%);
-  --sb-color-accent: hsl(var(--sb-hue-accent), 100%, 60%);
-  --sb-color-accent-high: hsl(var(--sb-hue-accent), 100%, 87%);
-
-  --sb-color-text: var(--sb-color-gray-2);
-  --sb-color-text-accent: var(--sb-color-accent-high);
-  --sb-color-text-invert: var(--sb-color-accent-low);
-  --sb-color-bg: var(--sb-color-black);
-  --sb-color-bg-nav: var(--sb-color-gray-6);
-  --sb-color-bg-sidebar: var(--sb-color-gray-6);
-  --sb-color-bg-inline-code: var(--sb-color-gray-5);
-  --sb-color-hairline: var(--sb-color-gray-6);
-  --sb-color-hairline-shade: var(--sb-color-black);
-
-  --sb-color-backdrop-overlay: hsla(223, 13%, 10%, 0.66);
-
-  /* Shadows (dark mode) */
-  --sb-shadow-sm: 0px 1px 1px hsla(0, 0%, 0%, 0.12),
-    0px 2px 1px hsla(0, 0%, 0%, 0.24);
-  --sb-shadow-md: 0px 8px 4px hsla(0, 0%, 0%, 0.08),
-    0px 5px 2px hsla(0, 0%, 0%, 0.08), 0px 3px 2px hsla(0, 0%, 0%, 0.12),
-    0px 1px 1px hsla(0, 0%, 0%, 0.15);
-  --sb-shadow-lg: 0px 25px 7px hsla(0, 0%, 0%, 0.03),
-    0px 16px 6px hsla(0, 0%, 0%, 0.1), 0px 9px 5px hsla(223, 13%, 10%, 0.33),
-    0px 4px 4px hsla(0, 0%, 0%, 0.75), 0px 4px 2px hsla(0, 0%, 0%, 0.25);
-
-  /* Gradients (unchanged across dark & light modes) */
-  --sb-gradient-blue-purple: linear-gradient(
-    to bottom,
-    hsl(234, 100%, 59.8%) 0%,
-    hsl(281, 82.1%, 62.7%) 100%
-  );
-  --sb-gradient-red-pink: linear-gradient(
-    to bottom,
-    hsl(0, 67.9%, 52.4%) 0%,
-    hsl(295, 100%, 62.7%) 100%
-  );
-  --sb-gradient-orange-yellow: linear-gradient(
-    to bottom,
-    hsl(54, 93.5%, 57.6%) 0%,
-    hsl(14, 100%, 66.5%) 100%
-  );
-  --sb-gradient-blue-green: linear-gradient(
-    to bottom,
-    hsl(165, 86.6%, 62%) 0%,
-    hsl(227, 58.4%, 44.3%) 100%
-  );
-
-  /* Text size and line height */
-  --sb-text-xs: 0.8125rem; /* 13px */
-  --sb-text-sm: 0.875rem; /* 14px */
-  --sb-text-base: 1rem; /* 16px */
-  --sb-text-lg: 1.125rem; /* 18px */
-  --sb-text-xl: 1.25rem; /* 20px */
-  --sb-text-2xl: 1.5rem; /* 24px */
-  --sb-text-3xl: 1.8125rem; /* 29px */
-  --sb-text-4xl: 2.1875rem; /* 35px */
-  --sb-text-5xl: 2.625rem; /* 42px */
-
-  --sb-text-body: var(--sb-text-base);
-  --sb-text-body-sm: var(--sb-text-xs);
-  --sb-text-code: var(--sb-text-base);
-  --sb-text-code-sm: var(--sb-text-xs);
-  --sb-text-h1: var(--sb-text-4xl);
-  --sb-text-h2: var(--sb-text-3xl);
-  --sb-text-h3: var(--sb-text-2xl);
-  --sb-text-h4: var(--sb-text-xl);
-  --sb-text-h5: var(--sb-text-lg);
-
-  --sb-line-height: 1.8;
-  --sb-line-height-headings: 1.2;
-
-  --sb-font-system: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
-    'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif,
-    'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
-  --sb-font-system-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
-    'Liberation Mono', 'Courier New', monospace;
-  --__sb-font: var(--sb-font, ''), var(--sb-font-system);
-  --__sb-font-mono: var(--sb-font-mono, ''), var(--sb-font-system-mono);
-
-  /** Key layout values */
-  --sb-nav-height: 4rem;
-  --sb-nav-pad-x: 1.5rem;
-  --sb-nav-pad-y: 0.75rem;
-  --sb-sidebar-width: 18.75rem;
-  --sb-sidebar-pad-x: 1rem;
-  --sb-content-width: 45rem;
-  --sb-content-pad-x: 1rem;
-  --sb-menu-button-size: 2rem;
-  --sb-nav-gap: var(--sb-content-pad-x);
-
-  /* Global z-index values */
-  --sb-z-index-navbar: 10;
-  --sb-z-index-skiplink: 20;
-}
-
-:root[data-theme='light'],
-[data-theme='light'] ::backdrop {
-  /* Colours (light mode) */
-  --sb-color-white: hsl(223, 13%, 10%);
-  --sb-color-gray-1: hsl(222, 13%, 16%);
-  --sb-color-gray-2: hsl(222, 11%, 23%);
-  --sb-color-gray-3: hsl(225, 9%, 36%);
-  --sb-color-gray-4: hsl(221, 8%, 56%);
-  --sb-color-gray-5: hsl(228, 8%, 77%);
-  --sb-color-gray-6: hsl(231, 23%, 94%);
-  --sb-color-gray-7: hsl(240, 20%, 97%);
-  --sb-color-black: hsl(0, 0%, 100%);
-
-  --sb-color-orange-high: hsl(var(--sb-hue-orange), 80%, 25%);
-  --sb-color-orange: hsl(var(--sb-hue-orange), 90%, 60%);
-  --sb-color-orange-low: hsl(var(--sb-hue-orange), 90%, 88%);
-  --sb-color-green-high: hsl(var(--sb-hue-green), 80%, 22%);
-  --sb-color-green: hsl(var(--sb-hue-green), 90%, 60%);
-  --sb-color-green-low: hsl(var(--sb-hue-green), 85%, 90%);
-  --sb-color-blue-high: hsl(var(--sb-hue-blue), 80%, 30%);
-  --sb-color-blue: hsl(var(--sb-hue-blue), 90%, 60%);
-  --sb-color-blue-low: hsl(var(--sb-hue-blue), 88%, 90%);
-  --sb-color-purple-high: hsl(var(--sb-hue-purple), 39%, 30%);
-  --sb-color-purple: hsl(var(--sb-hue-purple), 90%, 60%);
-  --sb-color-purple-low: hsl(var(--sb-hue-purple), 80%, 90%);
-  --sb-color-red-high: hsl(var(--sb-hue-red), 80%, 30%);
-  --sb-color-red: hsl(var(--sb-hue-red), 90%, 60%);
-  --sb-color-red-low: hsl(var(--sb-hue-red), 80%, 90%);
-
-  --sb-color-accent-high: hsl(var(--sb-hue-accent), 80%, 30%);
-  --sb-color-accent: hsl(var(--sb-hue-accent), 90%, 60%);
-  --sb-color-accent-low: hsl(var(--sb-hue-accent), 88%, 90%);
-
-  --sb-color-text-accent: var(--sb-color-accent);
-  --sb-color-text-invert: var(--sb-color-black);
-  --sb-color-bg-nav: var(--sb-color-gray-7);
-  --sb-color-bg-sidebar: var(--sb-color-bg);
-  --sb-color-bg-inline-code: var(--sb-color-gray-6);
-  --sb-color-hairline-shade: var(--sb-color-gray-6);
-
-  --sb-color-backdrop-overlay: hsla(225, 9%, 36%, 0.66);
-
-  /* Shadows (light mode) */
-  --sb-shadow-sm: 0px 1px 1px hsla(0, 0%, 0%, 0.06),
-    0px 2px 1px hsla(0, 0%, 0%, 0.06);
-  --sb-shadow-md: 0px 8px 4px hsla(0, 0%, 0%, 0.03),
-    0px 5px 2px hsla(0, 0%, 0%, 0.03), 0px 3px 2px hsla(0, 0%, 0%, 0.06),
-    0px 1px 1px hsla(0, 0%, 0%, 0.06);
-  --sb-shadow-lg: 0px 25px 7px rgba(0, 0, 0, 0.01),
-    0px 16px 6px hsla(0, 0%, 0%, 0.03), 0px 9px 5px hsla(223, 13%, 10%, 0.08),
-    0px 4px 4px hsla(0, 0%, 0%, 0.16), 0px 4px 2px hsla(0, 0%, 0%, 0.04);
-}
-
-@media (min-width: 50em) {
-  :root {
-    --sb-text-h1: var(--sb-text-5xl);
-    --sb-text-h2: var(--sb-text-4xl);
-    --sb-text-h3: var(--sb-text-3xl);
-    --sb-text-h4: var(--sb-text-2xl);
-  }
-}
-
-@media (min-width: 72rem) {
-  :root {
-    --sb-content-pad-x: 1.5rem;
-  }
-}
diff --git a/packages/starbook/style/shiki.css b/packages/starbook/style/shiki.css
deleted file mode 100644
index d87cfce984f..00000000000
--- a/packages/starbook/style/shiki.css
+++ /dev/null
@@ -1,13 +0,0 @@
-:root {
-  --astro-code-color-text: var(--sb-color-white);
-  --astro-code-color-background: var(--sb-color-gray-6);
-  --astro-code-token-constant: var(--sb-color-blue-high);
-  --astro-code-token-string: var(--sb-color-green-high);
-  --astro-code-token-comment: var(--sb-color-gray-2);
-  --astro-code-token-keyword: var(--sb-color-purple-high);
-  --astro-code-token-parameter: var(--sb-color-red-high);
-  --astro-code-token-function: var(--sb-color-red-high);
-  --astro-code-token-string-expression: var(--sb-color-green-high);
-  --astro-code-token-punctuation: var(--sb-color-gray-2);
-  --astro-code-token-link: var(--sb-color-blue-high);
-}
diff --git a/packages/starbook/types.ts b/packages/starbook/types.ts
deleted file mode 100644
index 638755df1f3..00000000000
--- a/packages/starbook/types.ts
+++ /dev/null
@@ -1 +0,0 @@
-export { StarbookConfig } from './utils/user-config';
diff --git a/packages/starbook/virtual.d.ts b/packages/starbook/virtual.d.ts
deleted file mode 100644
index 2713e0669d1..00000000000
--- a/packages/starbook/virtual.d.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-declare module 'virtual:starbook/user-config' {
-  const Config: import('./types').StarbookConfig;
-  export default Config;
-}
-declare module 'virtual:starbook/project-context' {
-  export default { root: string };
-}
-
-declare module 'virtual:starbook/user-css' {}
diff --git a/packages/starbook/404.astro b/packages/starlight/404.astro
similarity index 87%
rename from packages/starbook/404.astro
rename to packages/starlight/404.astro
index 428d74776fa..a0f8bb4c48e 100644
--- a/packages/starbook/404.astro
+++ b/packages/starlight/404.astro
@@ -26,7 +26,7 @@ const locale = undefined;
     <ThemeProvider />
     <PageFrame>
       <Header slot="header" locale={locale} />
-      <main id="starbook__overview">
+      <main id="starlight__overview">
         <MarkdownContent>
           <h1>404</h1>
           <p>Houston, we have a problem.</p>
@@ -40,10 +40,10 @@ const locale = undefined;
     </PageFrame>
 
     <style>
-      #starbook__overview {
+      #starlight__overview {
         margin: auto;
-        padding: clamp(2rem, 10vmin, 6rem) var(--sb-nav-pad-x);
-        max-width: var(--sb-content-width);
+        padding: clamp(2rem, 10vmin, 6rem) var(--sl-nav-pad-x);
+        max-width: var(--sl-content-width);
         max-width: max-content;
       }
     </style>
diff --git a/packages/starlight/README.md b/packages/starlight/README.md
new file mode 100644
index 00000000000..937ce2cd8c8
--- /dev/null
+++ b/packages/starlight/README.md
@@ -0,0 +1,24 @@
+# Starlight
+
+Starlight is a documentation website framework for [Astro][astro].
+
+## Documentation
+
+[Read the Starlight docs][docs] (they’re built with Starlight!)
+
+## Contributing
+
+- [Code of Conduct][coc]
+- [Community Guide][community]
+
+## License
+
+MIT
+
+Copyright (c) 2023–present [Starlight contributors][contributors]
+
+[astro]: https://astro.build/
+[docs]: https://starlight.astro.build/
+[coc]: https://github.com/withastro/.github/blob/main/CODE_OF_CONDUCT.md
+[community]: https://github.com/withastro/.github/blob/main/COMMUNITY_GUIDE.md
+[contributors]: https://github.com/withastro/starlight/graphs/contributors
diff --git a/packages/starbook/components/ContentPanel.astro b/packages/starlight/components/ContentPanel.astro
similarity index 70%
rename from packages/starbook/components/ContentPanel.astro
rename to packages/starlight/components/ContentPanel.astro
index 570dbae1b7d..4f3aaa2ab2e 100644
--- a/packages/starbook/components/ContentPanel.astro
+++ b/packages/starlight/components/ContentPanel.astro
@@ -4,13 +4,13 @@
 
 <style>
   .content-panel {
-    padding: 1.5rem var(--sb-content-pad-x);
+    padding: 1.5rem var(--sl-content-pad-x);
   }
   .content-panel + .content-panel {
-    border-top: 1px solid var(--sb-color-hairline);
+    border-top: 1px solid var(--sl-color-hairline);
   }
   .container {
-    max-width: var(--sb-content-width);
+    max-width: var(--sl-content-width);
   }
 
   .container > :global(* + *) {
diff --git a/packages/starbook/components/EditLink.astro b/packages/starlight/components/EditLink.astro
similarity index 90%
rename from packages/starbook/components/EditLink.astro
rename to packages/starlight/components/EditLink.astro
index 9b44099f509..833be12323c 100644
--- a/packages/starbook/components/EditLink.astro
+++ b/packages/starlight/components/EditLink.astro
@@ -1,6 +1,6 @@
 ---
 import type { CollectionEntry } from 'astro:content';
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 
 interface Props {
   data: CollectionEntry<'docs'>['data'];
diff --git a/packages/starbook/components/FallbackContentNotice.astro b/packages/starlight/components/FallbackContentNotice.astro
similarity index 55%
rename from packages/starbook/components/FallbackContentNotice.astro
rename to packages/starlight/components/FallbackContentNotice.astro
index e4dc3a4a013..fc05938d09e 100644
--- a/packages/starbook/components/FallbackContentNotice.astro
+++ b/packages/starlight/components/FallbackContentNotice.astro
@@ -6,22 +6,22 @@ import Icon from './Icon.astro';
   <Icon
     name={'warning'}
     size="1.5em"
-    color="var(--sb-color-orange-high)"
+    color="var(--sl-color-orange-high)"
   /><span>This content is not available in your language yet.</span>
 </p>
 
 <style>
   p {
-    border: 1px solid var(--sb-color-orange);
+    border: 1px solid var(--sl-color-orange);
     padding: 0.75em 1em;
-    background-color: var(--sb-color-orange-low);
-    color: var(--sb-color-orange-high);
+    background-color: var(--sl-color-orange-low);
+    color: var(--sl-color-orange-high);
     width: max-content;
     max-width: 100%;
     display: flex;
     align-items: center;
     gap: 0.75em;
-    font-size: var(--sb-text-body-sm);
-    line-height: var(--sb-line-height-headings);
+    font-size: var(--sl-text-body-sm);
+    line-height: var(--sl-line-height-headings);
   }
 </style>
diff --git a/packages/starbook/components/HeadSEO.astro b/packages/starlight/components/HeadSEO.astro
similarity index 96%
rename from packages/starbook/components/HeadSEO.astro
rename to packages/starlight/components/HeadSEO.astro
index 9ebdde57dce..3b300355b8e 100644
--- a/packages/starbook/components/HeadSEO.astro
+++ b/packages/starlight/components/HeadSEO.astro
@@ -1,6 +1,6 @@
 ---
 import type { CollectionEntry } from 'astro:content';
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 import { localizedUrl } from '../utils/localizedUrl';
 
 interface Props {
diff --git a/packages/starbook/components/Header.astro b/packages/starlight/components/Header.astro
similarity index 77%
rename from packages/starbook/components/Header.astro
rename to packages/starlight/components/Header.astro
index 020b621b64d..f35e9e79193 100644
--- a/packages/starbook/components/Header.astro
+++ b/packages/starlight/components/Header.astro
@@ -1,5 +1,5 @@
 ---
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 import LanguageSelect from './LanguageSelect.astro';
 import Search from './Search.astro';
 import ThemeSelect from './ThemeSelect.astro';
@@ -21,16 +21,16 @@ interface Props {
 <style>
   .header {
     display: flex;
-    gap: var(--sb-nav-gap);
+    gap: var(--sl-nav-gap);
     justify-content: space-between;
     align-items: center;
     height: 100%;
   }
 
   .site-title {
-    font-size: var(--sb-text-2xl);
+    font-size: var(--sl-text-2xl);
     font-weight: 600;
-    color: var(--sb-color-text-accent);
+    color: var(--sl-color-text-accent);
     text-decoration: none;
     white-space: nowrap;
   }
@@ -41,16 +41,16 @@ interface Props {
 
   @media (min-width: 50rem) {
     .header {
-      --__sidebar-width: var(--sb-sidebar-width) - var(--sb-nav-pad-x);
+      --__sidebar-width: var(--sl-sidebar-width) - var(--sl-nav-pad-x);
       --__main-column-fr: calc(
-        (100% - var(--sb-content-width) - 2 * var(--sb-sidebar-width)) / 2
+        (100% - var(--sl-content-width) - 2 * var(--sl-sidebar-width)) / 2
       );
       display: grid;
       grid-template-columns:
         /* 1 (site title): runs up until the main content column’s left edge.  */
         calc(
           var(--__sidebar-width) +
-            max(0rem, var(--__main-column-fr) - var(--sb-nav-gap))
+            max(0rem, var(--__main-column-fr) - var(--sl-nav-gap))
         )
         /* 2 (search box): all free space that is available. */
         1fr
diff --git a/packages/starbook/components/Icon.astro b/packages/starlight/components/Icon.astro
similarity index 78%
rename from packages/starbook/components/Icon.astro
rename to packages/starlight/components/Icon.astro
index e080d18f3cc..a8a54c8727a 100644
--- a/packages/starbook/components/Icon.astro
+++ b/packages/starlight/components/Icon.astro
@@ -22,14 +22,14 @@ const a11yAttrs = label
   height="16"
   viewBox="0 0 24 24"
   fill="currentColor"
-  style={`--sb-icon-color: ${color}; --sb-icon-size: ${size};`}
+  style={`--sl-icon-color: ${color}; --sl-icon-size: ${size};`}
   set:html={Icons[name]}
 />
 
 <style>
   svg {
-    color: var(--sb-icon-color, inherit);
-    font-size: var(--sb-icon-size, 1em);
+    color: var(--sl-icon-color, inherit);
+    font-size: var(--sl-icon-size, 1em);
     width: 1em;
     height: 1em;
   }
diff --git a/packages/starbook/components/Icons.ts b/packages/starlight/components/Icons.ts
similarity index 100%
rename from packages/starbook/components/Icons.ts
rename to packages/starlight/components/Icons.ts
diff --git a/packages/starbook/components/LanguageSelect.astro b/packages/starlight/components/LanguageSelect.astro
similarity index 82%
rename from packages/starbook/components/LanguageSelect.astro
rename to packages/starlight/components/LanguageSelect.astro
index 65d978e2fe2..ebdb0546daa 100644
--- a/packages/starbook/components/LanguageSelect.astro
+++ b/packages/starlight/components/LanguageSelect.astro
@@ -1,5 +1,5 @@
 ---
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 import { localizedUrl } from '../utils/localizedUrl';
 import Select from './Select.astro';
 
@@ -17,7 +17,7 @@ function localizedPathname(locale: string | undefined): string {
 
 {
   config.isMultilingual && (
-    <starbook-lang-select>
+    <starlight-lang-select>
       <Select
         icon="translate"
         label="Select language"
@@ -29,12 +29,12 @@ function localizedPathname(locale: string | undefined): string {
         }))}
         width="7em"
       />
-    </starbook-lang-select>
+    </starlight-lang-select>
   )
 }
 
 <script>
-  class StarBookLanguageSelect extends HTMLElement {
+  class StarlightLanguageSelect extends HTMLElement {
     constructor() {
       super();
       const select = this.querySelector('select');
@@ -47,5 +47,5 @@ function localizedPathname(locale: string | undefined): string {
       }
     }
   }
-  customElements.define('starbook-lang-select', StarBookLanguageSelect);
+  customElements.define('starlight-lang-select', StarlightLanguageSelect);
 </script>
diff --git a/packages/starbook/components/LastUpdated.astro b/packages/starlight/components/LastUpdated.astro
similarity index 84%
rename from packages/starbook/components/LastUpdated.astro
rename to packages/starlight/components/LastUpdated.astro
index 707aa980996..07e3003106f 100644
--- a/packages/starbook/components/LastUpdated.astro
+++ b/packages/starlight/components/LastUpdated.astro
@@ -1,7 +1,7 @@
 ---
 import type { CollectionEntry } from 'astro:content';
 import { fileURLToPath } from 'node:url';
-import project from 'virtual:starbook/project-context';
+import project from 'virtual:starlight/project-context';
 import { getFileCommitDate } from '../utils/git';
 
 interface Props {
@@ -35,7 +35,7 @@ try {
 <style>
   p {
     margin-block: 3rem 1.5rem;
-    font-size: var(--sb-text-sm);
-    color: var(--sb-color-gray-3);
+    font-size: var(--sl-text-sm);
+    color: var(--sl-color-gray-3);
   }
 </style>
diff --git a/packages/starbook/components/MarkdownContent.astro b/packages/starlight/components/MarkdownContent.astro
similarity index 68%
rename from packages/starbook/components/MarkdownContent.astro
rename to packages/starlight/components/MarkdownContent.astro
index c2d1c2fe78a..736ea2a6dd0 100644
--- a/packages/starbook/components/MarkdownContent.astro
+++ b/packages/starlight/components/MarkdownContent.astro
@@ -36,8 +36,8 @@
   }
 
   .content :global(:is(h1, h2, h3, h4, h5, h6)) {
-    color: var(--sb-color-white);
-    line-height: var(--sb-line-height-headings);
+    color: var(--sl-color-white);
+    line-height: var(--sl-line-height-headings);
     font-weight: 600;
   }
 
@@ -47,41 +47,41 @@
   }
 
   .content :global(h1) {
-    font-size: var(--sb-text-h1);
+    font-size: var(--sl-text-h1);
   }
   .content :global(h2) {
-    font-size: var(--sb-text-h2);
+    font-size: var(--sl-text-h2);
   }
   .content :global(h3) {
-    font-size: var(--sb-text-h3);
+    font-size: var(--sl-text-h3);
   }
   .content :global(h4) {
-    font-size: var(--sb-text-h4);
+    font-size: var(--sl-text-h4);
   }
   .content :global(h5) {
-    font-size: var(--sb-text-h5);
+    font-size: var(--sl-text-h5);
   }
   .content :global(h6) {
-    font-size: var(--sb-text-h6);
+    font-size: var(--sl-text-h6);
   }
 
   .content :global(a) {
-    color: var(--sb-color-text-accent);
+    color: var(--sl-color-text-accent);
   }
   .content :global(a:hover) {
-    color: var(--sb-color-white);
+    color: var(--sl-color-white);
   }
 
   .content :global(code) {
-    background-color: var(--sb-color-bg-inline-code);
+    background-color: var(--sl-color-bg-inline-code);
     margin-block: -0.125rem;
     padding: 0.125rem 0.375rem;
   }
 
   .content :global(pre) {
-    border: 1px solid var(--sb-color-gray-5);
+    border: 1px solid var(--sl-color-gray-5);
     padding: 0.75rem 1rem;
-    font-size: var(--sb-text-code);
+    font-size: var(--sl-text-code);
   }
 
   .content :global(pre code) {
@@ -89,24 +89,24 @@
   }
 
   .content :global(blockquote) {
-    border-inline-start: 1px solid var(--sb-color-gray-5);
+    border-inline-start: 1px solid var(--sl-color-gray-5);
     padding-inline-start: 1rem;
   }
 
   .content :global(table) {
-    border: 1px solid var(--sb-color-gray-5);
+    border: 1px solid var(--sl-color-gray-5);
     border-collapse: collapse;
   }
   .content :global(tr:nth-child(2n)) {
-    background-color: var(--sb-color-gray-7, var(--sb-color-gray-6));
+    background-color: var(--sl-color-gray-7, var(--sl-color-gray-6));
   }
   .content :global(:is(th, td)) {
-    border: 1px solid var(--sb-color-hairline);
+    border: 1px solid var(--sl-color-hairline);
     padding: 0.375rem 0.8125rem;
   }
 
   .content :global(hr) {
     border: 0;
-    border-bottom: 1px solid var(--sb-color-hairline);
+    border-bottom: 1px solid var(--sl-color-hairline);
   }
 </style>
diff --git a/packages/starbook/components/MobileMenuToggle.astro b/packages/starlight/components/MobileMenuToggle.astro
similarity index 67%
rename from packages/starbook/components/MobileMenuToggle.astro
rename to packages/starlight/components/MobileMenuToggle.astro
index 1063c8b3a1c..b0d77b84e0f 100644
--- a/packages/starbook/components/MobileMenuToggle.astro
+++ b/packages/starlight/components/MobileMenuToggle.astro
@@ -2,19 +2,19 @@
 import Icon from './Icon.astro';
 ---
 
-<starbook-menu-button>
+<starlight-menu-button>
   <button
     aria-expanded="false"
     aria-label="Menu"
-    aria-controls="starbook__sidebar"
+    aria-controls="starlight__sidebar"
     class="md:hidden"
   >
     <Icon name="bars" />
   </button>
-</starbook-menu-button>
+</starlight-menu-button>
 
 <script>
-  class StarbookMenuButton extends HTMLElement {
+  class StarlightMenuButton extends HTMLElement {
     btn = this.querySelector('button')!;
 
     constructor() {
@@ -46,39 +46,39 @@ import Icon from './Icon.astro';
     }
   }
 
-  customElements.define('starbook-menu-button', StarbookMenuButton);
+  customElements.define('starlight-menu-button', StarlightMenuButton);
 </script>
 
 <style>
   button {
     position: fixed;
-    top: calc((var(--sb-nav-height) - var(--sb-menu-button-size)) / 2);
-    inset-inline-end: var(--sb-nav-pad-x);
-    z-index: var(--sb-z-index-navbar);
+    top: calc((var(--sl-nav-height) - var(--sl-menu-button-size)) / 2);
+    inset-inline-end: var(--sl-nav-pad-x);
+    z-index: var(--sl-z-index-navbar);
     border: 0;
     border-radius: 50%;
     display: flex;
-    width: var(--sb-menu-button-size);
-    height: var(--sb-menu-button-size);
+    width: var(--sl-menu-button-size);
+    height: var(--sl-menu-button-size);
     padding: 0.5rem;
-    background-color: var(--sb-color-white);
-    color: var(--sb-color-black);
-    box-shadow: var(--sb-shadow-md);
+    background-color: var(--sl-color-white);
+    color: var(--sl-color-black);
+    box-shadow: var(--sl-shadow-md);
     cursor: pointer;
   }
 
   [aria-expanded='true'] button {
-    background-color: var(--sb-color-gray-2);
+    background-color: var(--sl-color-gray-2);
     box-shadow: none;
   }
 
   :global([data-theme='light']) button {
-    background-color: var(--sb-color-black);
-    color: var(--sb-color-white);
+    background-color: var(--sl-color-black);
+    color: var(--sl-color-white);
   }
 
   :global([data-theme='light']) [aria-expanded='true'] button {
-    background-color: var(--sb-color-gray-5);
+    background-color: var(--sl-color-gray-5);
   }
 </style>
 
diff --git a/packages/starbook/components/PrevNextLinks.astro b/packages/starlight/components/PrevNextLinks.astro
similarity index 84%
rename from packages/starbook/components/PrevNextLinks.astro
rename to packages/starlight/components/PrevNextLinks.astro
index 81b937b02fa..70dd48567bf 100644
--- a/packages/starbook/components/PrevNextLinks.astro
+++ b/packages/starlight/components/PrevNextLinks.astro
@@ -54,11 +54,11 @@ const isRtl = dir === 'rtl';
     width: 100%;
     flex-basis: calc(50% - 0.5rem);
     flex-grow: 1;
-    border: 1px solid var(--sb-color-gray-5);
+    border: 1px solid var(--sl-color-gray-5);
     border-radius: 0.5rem;
     padding: 1rem;
     text-decoration: none;
-    color: var(--sb-color-gray-2);
+    color: var(--sl-color-gray-2);
   }
   [rel='next'] {
     justify-content: end;
@@ -66,12 +66,12 @@ const isRtl = dir === 'rtl';
     flex-direction: row-reverse;
   }
   a:hover {
-    border-color: var(--sb-color-gray-2);
+    border-color: var(--sl-color-gray-2);
   }
 
   .link-title {
-    color: var(--sb-color-white);
-    font-size: var(--sb-text-2xl);
-    line-height: var(--sb-line-height-headings);
+    color: var(--sl-color-white);
+    font-size: var(--sl-text-2xl);
+    line-height: var(--sl-line-height-headings);
   }
 </style>
diff --git a/packages/starbook/components/RightSidebarPanel.astro b/packages/starlight/components/RightSidebarPanel.astro
similarity index 57%
rename from packages/starbook/components/RightSidebarPanel.astro
rename to packages/starlight/components/RightSidebarPanel.astro
index 92d8a0315e1..81ce2e4d459 100644
--- a/packages/starbook/components/RightSidebarPanel.astro
+++ b/packages/starlight/components/RightSidebarPanel.astro
@@ -6,32 +6,32 @@
 
 <style>
   .right-sidebar-panel {
-    padding: 1rem var(--sb-sidebar-pad-x);
+    padding: 1rem var(--sl-sidebar-pad-x);
   }
   .right-sidebar-panel + .right-sidebar-panel {
-    border-top: 1px solid var(--sb-color-hairline);
+    border-top: 1px solid var(--sl-color-hairline);
   }
   .container {
-    width: var(--sb-sidebar-width);
+    width: var(--sl-sidebar-width);
   }
   .right-sidebar-panel :global(h2) {
-    color: var(--sb-color-white);
-    font-size: var(--sb-text-base);
+    color: var(--sl-color-white);
+    font-size: var(--sl-text-base);
     font-weight: 600;
   }
   .right-sidebar-panel :global(a) {
     display: block;
-    font-size: var(--sb-text-xs);
+    font-size: var(--sl-text-xs);
     text-decoration: none;
-    color: var(--sb-color-gray-3);
+    color: var(--sl-color-gray-3);
   }
   .right-sidebar-panel :global(a:hover) {
-    color: var(--sb-color-white);
+    color: var(--sl-color-white);
   }
   @media (min-width: 72rem) {
     .container {
       max-width: calc(
-        100vw - var(--sb-content-width) - var(--sb-sidebar-width)
+        100vw - var(--sl-content-width) - var(--sl-sidebar-width)
       );
     }
   }
diff --git a/packages/starbook/components/Search.astro b/packages/starlight/components/Search.astro
similarity index 69%
rename from packages/starbook/components/Search.astro
rename to packages/starlight/components/Search.astro
index 4e8cac60698..ec51c448c8c 100644
--- a/packages/starbook/components/Search.astro
+++ b/packages/starlight/components/Search.astro
@@ -25,7 +25,7 @@ import Icon from './Icon.astro';
           </div>
         ) : (
           <div class="search-container">
-            <div id="starbook__search" />
+            <div id="starlight__search" />
           </div>
         )
       }
@@ -87,7 +87,7 @@ import Icon from './Icon.astro';
     onIdle(async () => {
       const { PagefindUI } = await import('@pagefind/default-ui');
       new PagefindUI({
-        element: '#starbook__search',
+        element: '#starlight__search',
         baseUrl: import.meta.env.BASE_URL,
         showImages: false,
       });
@@ -102,27 +102,27 @@ import Icon from './Icon.astro';
     gap: 0.5rem;
     border: 0;
     background-color: transparent;
-    color: var(--sb-color-gray-1);
+    color: var(--sl-color-gray-1);
     cursor: pointer;
     height: 2.5rem;
-    font-size: var(--sb-text-xl);
+    font-size: var(--sl-text-xl);
   }
 
   @media (min-width: 50rem) {
     button[data-open-modal] {
-      border: 1px solid var(--sb-color-gray-5);
+      border: 1px solid var(--sl-color-gray-5);
       border-radius: 0.5rem;
       padding-inline-start: 0.75rem;
       padding-inline-end: 1rem;
-      background-color: var(--sb-color-black);
-      color: var(--sb-color-gray-2);
-      font-size: var(--sb-text-sm);
+      background-color: var(--sl-color-black);
+      color: var(--sl-color-gray-2);
+      font-size: var(--sl-text-sm);
       width: 100%;
       max-width: 22rem;
     }
     button[data-open-modal]:hover {
-      border-color: var(--sb-color-gray-2);
-      color: var(--sb-color-white);
+      border-color: var(--sl-color-gray-2);
+      color: var(--sl-color-white);
     }
 
     button[data-open-modal] > :last-child {
@@ -132,20 +132,20 @@ import Icon from './Icon.astro';
 
   dialog {
     margin: 0;
-    background-color: var(--sb-color-gray-6);
-    border: 1px solid var(--sb-color-gray-5);
+    background-color: var(--sl-color-gray-6);
+    border: 1px solid var(--sl-color-gray-5);
     width: 100%;
     max-width: 100%;
     height: 100%;
     max-height: 100%;
-    box-shadow: var(--sb-shadow-lg);
+    box-shadow: var(--sl-shadow-lg);
   }
   dialog[open] {
     display: grid;
   }
 
   dialog::backdrop {
-    background-color: var(--sb-color-backdrop-overlay);
+    background-color: var(--sl-color-backdrop-overlay);
     -webkit-backdrop-filter: blur(0.25rem);
     backdrop-filter: blur(0.25rem);
   }
@@ -168,21 +168,21 @@ import Icon from './Icon.astro';
     border: 0;
     background: transparent;
     cursor: pointer;
-    color: var(--sb-color-text-accent);
+    color: var(--sl-color-text-accent);
   }
 
-  #starbook__search {
-    --pagefind-ui-primary: var(--sb-color-accent-light);
-    --pagefind-ui-text: var(--sb-color-gray-2);
-    --pagefind-ui-background: var(--sb-color-black);
-    --pagefind-ui-border: var(--sb-color-gray-5);
+  #starlight__search {
+    --pagefind-ui-primary: var(--sl-color-accent-light);
+    --pagefind-ui-text: var(--sl-color-gray-2);
+    --pagefind-ui-background: var(--sl-color-black);
+    --pagefind-ui-border: var(--sl-color-gray-5);
     --pagefind-ui-border-width: 1px;
-    --sb-search-cancel-space: 5rem;
+    --sl-search-cancel-space: 5rem;
   }
 
   @media (min-width: 50rem) {
-    #starbook__search {
-      --sb-search-cancel-space: 0px;
+    #starlight__search {
+      --sl-search-cancel-space: 0px;
     }
 
     dialog {
@@ -202,95 +202,95 @@ import Icon from './Icon.astro';
 </style>
 
 <style is:global>
-  #starbook__search .pagefind-ui__form::before {
-    --pagefind-ui-text: var(--sb-color-gray-1);
+  #starlight__search .pagefind-ui__form::before {
+    --pagefind-ui-text: var(--sl-color-gray-1);
     opacity: 1;
   }
 
-  #starbook__search .pagefind-ui__search-input {
-    color: var(--sb-color-white);
+  #starlight__search .pagefind-ui__search-input {
+    color: var(--sl-color-white);
     font-weight: 400;
-    width: calc(100% - var(--sb-search-cancel-space));
+    width: calc(100% - var(--sl-search-cancel-space));
   }
 
-  #starbook__search input:focus {
-    --pagefind-ui-border: var(--sb-color-accent);
+  #starlight__search input:focus {
+    --pagefind-ui-border: var(--sl-color-accent);
   }
 
-  #starbook__search .pagefind-ui__search-clear {
-    inset-inline-end: var(--sb-search-cancel-space);
+  #starlight__search .pagefind-ui__search-clear {
+    inset-inline-end: var(--sl-search-cancel-space);
     width: calc(60px * var(--pagefind-ui-scale));
     padding: 0;
     background-color: transparent;
     overflow: hidden;
   }
-  #starbook__search .pagefind-ui__search-clear:focus {
-    outline: 1px solid var(--sb-color-accent);
+  #starlight__search .pagefind-ui__search-clear:focus {
+    outline: 1px solid var(--sl-color-accent);
   }
-  #starbook__search .pagefind-ui__search-clear::before {
+  #starlight__search .pagefind-ui__search-clear::before {
     content: '';
     -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m13.41 12 6.3-6.29a1 1 0 1 0-1.42-1.42L12 10.59l-6.29-6.3a1 1 0 0 0-1.42 1.42l6.3 6.29-6.3 6.29a1 1 0 0 0 .33 1.64 1 1 0 0 0 1.09-.22l6.29-6.3 6.29 6.3a1 1 0 0 0 1.64-.33 1 1 0 0 0-.22-1.09L13.41 12Z'/%3E%3C/svg%3E")
       center / 50% no-repeat;
     mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m13.41 12 6.3-6.29a1 1 0 1 0-1.42-1.42L12 10.59l-6.29-6.3a1 1 0 0 0-1.42 1.42l6.3 6.29-6.3 6.29a1 1 0 0 0 .33 1.64 1 1 0 0 0 1.09-.22l6.29-6.3 6.29 6.3a1 1 0 0 0 1.64-.33 1 1 0 0 0-.22-1.09L13.41 12Z'/%3E%3C/svg%3E")
       center / 50% no-repeat;
-    background-color: var(--sb-color-text-accent);
+    background-color: var(--sl-color-text-accent);
     display: block;
     width: 100%;
     height: 100%;
   }
 
-  #starbook__search .pagefind-ui__results > * + * {
+  #starlight__search .pagefind-ui__results > * + * {
     margin-top: 0.5rem;
   }
-  #starbook__search .pagefind-ui__result {
+  #starlight__search .pagefind-ui__result {
     position: relative;
     border: 0;
     border-radius: 0.25rem;
     padding: 1rem;
-    background-color: var(--sb-color-black);
+    background-color: var(--sl-color-black);
   }
 
-  #starbook__search .pagefind-ui__result:hover,
-  #starbook__search .pagefind-ui__result:focus-within {
-    outline: 1px solid var(--sb-color-accent-high);
+  #starlight__search .pagefind-ui__result:hover,
+  #starlight__search .pagefind-ui__result:focus-within {
+    outline: 1px solid var(--sl-color-accent-high);
   }
 
-  #starbook__search .pagefind-ui__result:focus-within {
-    background-color: var(--sb-color-accent-low);
+  #starlight__search .pagefind-ui__result:focus-within {
+    background-color: var(--sl-color-accent-low);
   }
 
-  #starbook__search .pagefind-ui__result-thumb,
-  #starbook__search .pagefind-ui__result-inner {
+  #starlight__search .pagefind-ui__result-thumb,
+  #starlight__search .pagefind-ui__result-inner {
     margin-top: 0;
   }
 
-  #starbook__search .pagefind-ui__result-link {
-    --pagefind-ui-text: var(--sb-color-white);
+  #starlight__search .pagefind-ui__result-link {
+    --pagefind-ui-text: var(--sl-color-white);
     font-weight: 600;
   }
 
-  #starbook__search .pagefind-ui__result-link:hover {
+  #starlight__search .pagefind-ui__result-link:hover {
     text-decoration: none;
   }
 
-  #starbook__search .pagefind-ui__result-link::after {
+  #starlight__search .pagefind-ui__result-link::after {
     content: '';
     position: absolute;
     inset: 0;
   }
 
-  #starbook__search .pagefind-ui__result-excerpt {
-    font-size: var(--sb-text-body-sm);
+  #starlight__search .pagefind-ui__result-excerpt {
+    font-size: var(--sl-text-body-sm);
   }
 
-  #starbook__search mark {
-    color: var(--sb-color-white);
-    background-color: var(--sb-color-accent-low);
+  #starlight__search mark {
+    color: var(--sl-color-white);
+    background-color: var(--sl-color-accent-low);
     font-weight: 500;
     padding: 0.1em 0.2em;
   }
 
-  #starbook__search .pagefind-ui__result:focus-within mark {
+  #starlight__search .pagefind-ui__result:focus-within mark {
     text-decoration: underline;
   }
 </style>
diff --git a/packages/starbook/components/Select.astro b/packages/starlight/components/Select.astro
similarity index 72%
rename from packages/starbook/components/Select.astro
rename to packages/starlight/components/Select.astro
index 1f816383830..1cd5fbd37d3 100644
--- a/packages/starbook/components/Select.astro
+++ b/packages/starlight/components/Select.astro
@@ -14,7 +14,7 @@ interface Props {
 }
 ---
 
-<label style={`--sb-select-width: ${Astro.props.width}`}>
+<label style={`--sl-select-width: ${Astro.props.width}`}>
   <span class="sr-only">{Astro.props.label}</span>
   <Icon name={Astro.props.icon} class="icon label-icon" />
   <select value={Astro.props.value}>
@@ -29,17 +29,17 @@ interface Props {
 
 <style>
   label {
-    --sb-label-icon-size: 0.875rem;
-    --sb-caret-size: 1.25rem;
+    --sl-label-icon-size: 0.875rem;
+    --sl-caret-size: 1.25rem;
     position: relative;
     display: flex;
     align-items: center;
     gap: 0.25rem;
-    color: var(--sb-color-gray-1);
+    color: var(--sl-color-gray-1);
   }
 
   label:hover {
-    color: var(--sb-color-gray-2);
+    color: var(--sl-color-gray-2);
   }
 
   .icon {
@@ -50,21 +50,21 @@ interface Props {
   }
 
   .label-icon {
-    font-size: var(--sb-label-icon-size);
+    font-size: var(--sl-label-icon-size);
     inset-inline-start: 0;
   }
 
   .caret {
-    font-size: var(--sb-caret-size);
+    font-size: var(--sl-caret-size);
     inset-inline-end: 0;
   }
 
   select {
     border: 0;
     padding-block: 0.625rem;
-    padding-inline: calc(var(--sb-label-icon-size) + 0.25rem)
-      calc(var(--sb-caret-size) + 0.25rem);
-    width: var(--sb-select-width);
+    padding-inline: calc(var(--sl-label-icon-size) + 0.25rem)
+      calc(var(--sl-caret-size) + 0.25rem);
+    width: var(--sl-select-width);
     background-color: transparent;
     text-overflow: ellipsis;
     color: inherit;
@@ -74,7 +74,7 @@ interface Props {
 
   @media (min-width: 50rem) {
     select {
-      font-size: var(--sb-text-sm);
+      font-size: var(--sl-text-sm);
     }
   }
 </style>
diff --git a/packages/starbook/components/Sidebar.astro b/packages/starlight/components/Sidebar.astro
similarity index 88%
rename from packages/starbook/components/Sidebar.astro
rename to packages/starlight/components/Sidebar.astro
index 5ab43b43f5b..cd514ffc84a 100644
--- a/packages/starbook/components/Sidebar.astro
+++ b/packages/starlight/components/Sidebar.astro
@@ -21,14 +21,14 @@ interface Props {
 <style>
   .sidebar {
     height: 100%;
-    padding: 1rem var(--sb-sidebar-pad-x);
+    padding: 1rem var(--sl-sidebar-pad-x);
     flex-direction: column;
     gap: 1rem;
   }
 
   .mobile-preferences {
     justify-content: space-between;
-    border-top: 1px solid var(--sb-color-gray-6);
+    border-top: 1px solid var(--sl-color-gray-6);
     padding: 0.5rem 0;
   }
 </style>
diff --git a/packages/starbook/components/SidebarSublist.astro b/packages/starlight/components/SidebarSublist.astro
similarity index 69%
rename from packages/starbook/components/SidebarSublist.astro
rename to packages/starlight/components/SidebarSublist.astro
index ecca5033d0a..2065c889fbf 100644
--- a/packages/starbook/components/SidebarSublist.astro
+++ b/packages/starlight/components/SidebarSublist.astro
@@ -27,16 +27,16 @@ interface Props {
 
 <style>
   ul {
-    --sb-sidebar-item-padding-inline: 0.5rem;
+    --sl-sidebar-item-padding-inline: 0.5rem;
     list-style: none;
     padding: 0;
   }
 
   h2 {
-    font-size: var(--sb-text-lg);
+    font-size: var(--sl-text-lg);
     font-weight: 600;
-    color: var(--sb-color-white);
-    padding-inline: var(--sb-sidebar-item-padding-inline);
+    color: var(--sl-color-white);
+    padding-inline: var(--sl-sidebar-item-padding-inline);
   }
 
   .sidebar-group + .sidebar-group {
@@ -47,21 +47,21 @@ interface Props {
     display: block;
     border-radius: 0.25rem;
     text-decoration: none;
-    color: var(--sb-color-gray-2);
-    padding-inline: var(--sb-sidebar-item-padding-inline);
+    color: var(--sl-color-gray-2);
+    padding-inline: var(--sl-sidebar-item-padding-inline);
   }
 
   a:hover,
   a:focus {
-    color: var(--sb-color-white);
+    color: var(--sl-color-white);
   }
 
   [aria-current='true'],
   [aria-current='true']:hover,
   [aria-current='true']:focus {
     font-weight: 600;
-    color: var(--sb-color-text-invert);
-    background-color: var(--sb-color-text-accent);
+    color: var(--sl-color-text-invert);
+    background-color: var(--sl-color-text-accent);
   }
 
   @media (min-width: 50rem) {
@@ -69,10 +69,10 @@ interface Props {
       margin-top: 0.5rem;
     }
     h2 {
-      font-size: var(--sb-text-base);
+      font-size: var(--sl-text-base);
     }
     a {
-      font-size: var(--sb-text-xs);
+      font-size: var(--sl-text-xs);
     }
   }
 </style>
diff --git a/packages/starlight/components/SkipLink.astro b/packages/starlight/components/SkipLink.astro
new file mode 100644
index 00000000000..29120f89b17
--- /dev/null
+++ b/packages/starlight/components/SkipLink.astro
@@ -0,0 +1,18 @@
+<a href="#starlight__overview">Skip to content</a>
+
+<style>
+  a {
+    position: fixed;
+    top: 0.75rem;
+    inset-inline-start: 0.75rem;
+  }
+  a:focus {
+    z-index: var(--sl-z-index-skiplink);
+    display: block;
+    padding: 0.5rem 1rem;
+    text-decoration: none;
+    color: var(--sl-color-text-invert);
+    background-color: var(--sl-color-text-accent);
+    box-shadow: var(--sl-shadow-lg);
+  }
+</style>
diff --git a/packages/starbook/components/TableOfContents.astro b/packages/starlight/components/TableOfContents.astro
similarity index 70%
rename from packages/starbook/components/TableOfContents.astro
rename to packages/starlight/components/TableOfContents.astro
index d58fc169da1..3732bce58ae 100644
--- a/packages/starbook/components/TableOfContents.astro
+++ b/packages/starlight/components/TableOfContents.astro
@@ -1,6 +1,6 @@
 ---
 import type { MarkdownHeading } from 'astro';
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 import { generateToC } from './TableOfContents/generateToC';
 import TableOfContentsList from './TableOfContents/TableOfContentsList.astro';
 
@@ -11,7 +11,7 @@ interface Props {
 const toc = generateToC(Astro.props.headings, config.tableOfContents);
 ---
 
-<nav aria-labelledby="starbook__on-this-page">
-  <h2 id="starbook__on-this-page">On this page</h2>
+<nav aria-labelledby="starlight__on-this-page">
+  <h2 id="starlight__on-this-page">On this page</h2>
   <TableOfContentsList toc={toc} />
 </nav>
diff --git a/packages/starbook/components/TableOfContents/TableOfContentsList.astro b/packages/starlight/components/TableOfContents/TableOfContentsList.astro
similarity index 100%
rename from packages/starbook/components/TableOfContents/TableOfContentsList.astro
rename to packages/starlight/components/TableOfContents/TableOfContentsList.astro
diff --git a/packages/starbook/components/TableOfContents/generateToC.ts b/packages/starlight/components/TableOfContents/generateToC.ts
similarity index 95%
rename from packages/starbook/components/TableOfContents/generateToC.ts
rename to packages/starlight/components/TableOfContents/generateToC.ts
index 93dbbcd15e5..155eb28571b 100644
--- a/packages/starbook/components/TableOfContents/generateToC.ts
+++ b/packages/starlight/components/TableOfContents/generateToC.ts
@@ -24,7 +24,7 @@ export function generateToC(
   headings: MarkdownHeading[],
   { minHeadingLevel, maxHeadingLevel, title = 'Overview' }: TocOpts
 ) {
-  const overview = { depth: 2, slug: 'starbook__overview', text: title };
+  const overview = { depth: 2, slug: 'starlight__overview', text: title };
   headings = [
     overview,
     ...headings.filter(
diff --git a/packages/starbook/components/ThemeProvider.astro b/packages/starlight/components/ThemeProvider.astro
similarity index 86%
rename from packages/starbook/components/ThemeProvider.astro
rename to packages/starlight/components/ThemeProvider.astro
index 4d785707cf3..85890fd666d 100644
--- a/packages/starbook/components/ThemeProvider.astro
+++ b/packages/starlight/components/ThemeProvider.astro
@@ -4,7 +4,7 @@ import Icon from './Icon.astro';
 
 <script>
   declare global {
-    var StarbookThemeProvider: {
+    var StarlightThemeProvider: {
       updatePickers(theme?: string): void;
     };
   }
@@ -12,10 +12,10 @@ import Icon from './Icon.astro';
 
 {/* This is intentionally inlined to avoid FOUC. */}
 <script is:inline>
-  window.StarbookThemeProvider = (() => {
+  window.StarlightThemeProvider = (() => {
     const storedTheme =
       typeof localStorage !== 'undefined' &&
-      localStorage.getItem('starbook-theme');
+      localStorage.getItem('starlight-theme');
     const theme =
       storedTheme ||
       (window.matchMedia('(prefers-color-scheme: light)').matches
@@ -25,7 +25,7 @@ import Icon from './Icon.astro';
       theme === 'light' ? 'light' : 'dark';
     return {
       updatePickers(theme = storedTheme || 'auto') {
-        document.querySelectorAll('starbook-theme-select').forEach((picker) => {
+        document.querySelectorAll('starlight-theme-select').forEach((picker) => {
           const select = picker.querySelector('select');
           if (select) select.value = theme;
           /** @type {HTMLTemplateElement | null} */
diff --git a/packages/starbook/components/ThemeSelect.astro b/packages/starlight/components/ThemeSelect.astro
similarity index 88%
rename from packages/starbook/components/ThemeSelect.astro
rename to packages/starlight/components/ThemeSelect.astro
index c94a985217c..246747bd30f 100644
--- a/packages/starbook/components/ThemeSelect.astro
+++ b/packages/starlight/components/ThemeSelect.astro
@@ -2,7 +2,7 @@
 import Select from './Select.astro';
 ---
 
-<starbook-theme-select>
+<starlight-theme-select>
   <Select
     icon="laptop"
     label="Select theme"
@@ -14,19 +14,19 @@ import Select from './Select.astro';
     ]}
     width="5.5em"
   />
-</starbook-theme-select>
+</starlight-theme-select>
 
 {/* Inlined to avoid FOUC. Uses global scope from `ThemeProvider.astro` */}
 <script is:inline>
-  StarbookThemeProvider.updatePickers();
+  StarlightThemeProvider.updatePickers();
 </script>
 
 <script>
   type Theme = 'auto' | 'dark' | 'light';
 
-  class StarBookThemeSelect extends HTMLElement {
+  class StarlightThemeSelect extends HTMLElement {
     /** Key in `localStorage` to store color theme preference at. */
-    #key = 'starbook-theme';
+    #key = 'starlight-theme';
 
     constructor() {
       super();
@@ -59,7 +59,7 @@ import Select from './Select.astro';
 
     /** Update select menu UI, document theme, and local storage state. */
     #onThemeChange(theme: Theme): void {
-      StarbookThemeProvider.updatePickers(theme);
+      StarlightThemeProvider.updatePickers(theme);
       document.documentElement.dataset.theme =
         theme === 'auto' ? this.#getPreferredColorScheme() : theme;
       this.#storeTheme(theme);
@@ -84,5 +84,5 @@ import Select from './Select.astro';
     }
   }
 
-  customElements.define('starbook-theme-select', StarBookThemeSelect);
+  customElements.define('starlight-theme-select', StarlightThemeSelect);
 </script>
diff --git a/packages/starbook/index.astro b/packages/starlight/index.astro
similarity index 91%
rename from packages/starbook/index.astro
rename to packages/starlight/index.astro
index 4ae47c32b3e..238ce8e63f5 100644
--- a/packages/starbook/index.astro
+++ b/packages/starlight/index.astro
@@ -1,6 +1,6 @@
 ---
 import type { InferGetStaticPropsType } from 'astro';
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 
 import { getPrevNextLinks, getSidebar } from './utils/navigation';
 import { paths } from './utils/routing';
@@ -32,7 +32,7 @@ import TwoColumnContent from './layout/TwoColumnContent.astro';
 import './style/asides.css';
 
 // Important that this is the last import so it can override built-in styles.
-import 'virtual:starbook/user-css';
+import 'virtual:starlight/user-css';
 
 export async function getStaticPaths() {
   return paths;
@@ -75,14 +75,14 @@ const prevNextLinks = getPrevNextLinks(sidebar);
           </RightSidebarPanel>
         </Fragment>
         <main
-          id="starbook__overview"
+          id="starlight__overview"
           data-pagefind-body
           lang={entryMeta.lang}
           dir={entryMeta.dir}
         >
           <ContentPanel>
             <h1
-              style="font-size: var(--sb-text-h1); line-height: var(--sb-line-height-headings); font-weight: 600; color: var(--sb-color-white); margin-top: 1rem;"
+              style="font-size: var(--sl-text-h1); line-height: var(--sl-line-height-headings); font-weight: 600; color: var(--sl-color-white); margin-top: 1rem;"
             >
               {entry.data.title}
             </h1>
diff --git a/packages/starbook/index.ts b/packages/starlight/index.ts
similarity index 67%
rename from packages/starbook/index.ts
rename to packages/starlight/index.ts
index 6e7b5fb7b41..ac4d452dc2c 100644
--- a/packages/starbook/index.ts
+++ b/packages/starlight/index.ts
@@ -8,33 +8,33 @@ import type {
 import { spawn } from 'node:child_process';
 import { dirname, relative } from 'node:path';
 import { fileURLToPath } from 'node:url';
-import { starbookAsides } from './integrations/asides';
+import { starlightAsides } from './integrations/asides';
 import {
-  StarBookUserConfig,
-  StarbookConfig,
-  StarbookConfigSchema,
+  StarlightUserConfig,
+  StarlightConfig,
+  StarlightConfigSchema,
 } from './utils/user-config';
 
-export default function StarbookIntegration(
-  opts: StarBookUserConfig
+export default function StarlightIntegration(
+  opts: StarlightUserConfig
 ): AstroIntegration[] {
-  const userConfig = StarbookConfigSchema.parse(opts);
+  const userConfig = StarlightConfigSchema.parse(opts);
 
-  const StarBook: AstroIntegration = {
-    name: 'starbook',
+  const Starlight: AstroIntegration = {
+    name: 'starlight',
     hooks: {
       'astro:config:setup': ({ config, injectRoute, updateConfig }) => {
-        injectRoute({ pattern: '404', entryPoint: 'starbook/404.astro' });
+        injectRoute({ pattern: '404', entryPoint: 'starlight/404.astro' });
         injectRoute({
           pattern: '[...slug]',
-          entryPoint: 'starbook/index.astro',
+          entryPoint: 'starlight/index.astro',
         });
         const newConfig: AstroUserConfig = {
           vite: {
-            plugins: [vitePluginStarBookUserConfig(userConfig, config)],
+            plugins: [vitePluginStarlightUserConfig(userConfig, config)],
           },
           markdown: {
-            remarkPlugins: [...starbookAsides()],
+            remarkPlugins: [...starlightAsides()],
             shikiConfig:
               // Configure Shiki theme if the user is using the default github-dark theme.
               config.markdown.shikiConfig.theme !== 'github-dark'
@@ -60,24 +60,24 @@ export default function StarbookIntegration(
     },
   };
 
-  return [StarBook, mdx()];
+  return [Starlight, mdx()];
 }
 
 function resolveVirtualModuleId(id: string) {
   return '\0' + id;
 }
 
-/** Expose the StarBook user config object via a virtual module. */
-function vitePluginStarBookUserConfig(
-  opts: StarbookConfig,
+/** Expose the Starlight user config object via a virtual module. */
+function vitePluginStarlightUserConfig(
+  opts: StarlightConfig,
   { root }: AstroConfig
 ): NonNullable<ViteUserConfig['plugins']>[number] {
   const modules = {
-    'virtual:starbook/user-config': `export default ${JSON.stringify(opts)}`,
-    'virtual:starbook/project-context': `export default ${JSON.stringify({
+    'virtual:starlight/user-config': `export default ${JSON.stringify(opts)}`,
+    'virtual:starlight/project-context': `export default ${JSON.stringify({
       root,
     })}`,
-    'virtual:starbook/user-css': opts.customCss
+    'virtual:starlight/user-css': opts.customCss
       .map((id) => `import "${id}";`)
       .join(''),
   };
@@ -89,7 +89,7 @@ function vitePluginStarBookUserConfig(
   );
 
   return {
-    name: 'vite-plugin-starbook-user-config',
+    name: 'vite-plugin-starlight-user-config',
     resolveId(id): string | void {
       if (id in modules) return resolveVirtualModuleId(id);
     },
diff --git a/packages/starbook/integrations/asides.ts b/packages/starlight/integrations/asides.ts
similarity index 95%
rename from packages/starbook/integrations/asides.ts
rename to packages/starlight/integrations/asides.ts
index 61a182787d8..6c3ca58b76e 100644
--- a/packages/starbook/integrations/asides.ts
+++ b/packages/starlight/integrations/asides.ts
@@ -42,9 +42,9 @@ function s(el: string, attrs: Properties = {}, children: any[] = []): P {
  * will produce this output
  *
  * ```astro
- * <aside class="starbook-aside starbook-aside--tip" aria-label="Did you know?">
- *   <p class="starbook-aside__title" aria-hidden="true">Did you know?</p>
- *   <section class="starbook-aside__content">
+ * <aside class="starlight-aside starlight-aside--tip" aria-label="Did you know?">
+ *   <p class="starlight-aside__title" aria-hidden="true">Did you know?</p>
+ *   <section class="starlight-aside__content">
  *     <p>Astro helps you build faster websites with “Islands Architecture”.</p>
  *   </section>
  * </Aside>
@@ -125,10 +125,10 @@ function remarkAsides(): Plugin<[], Root> {
         'aside',
         {
           'aria-label': title,
-          class: `starbook-aside starbook-aside--${variant}`,
+          class: `starlight-aside starlight-aside--${variant}`,
         },
         [
-          h('p', { class: 'starbook-aside__title', 'aria-hidden': 'true' }, [
+          h('p', { class: 'starlight-aside__title', 'aria-hidden': 'true' }, [
             s(
               'svg',
               {
@@ -136,13 +136,13 @@ function remarkAsides(): Plugin<[], Root> {
                 width: 16,
                 height: 16,
                 fill: 'currentColor',
-                class: 'starbook-aside__icon',
+                class: 'starlight-aside__icon',
               },
               iconPaths[variant]
             ),
             { type: 'text', value: title },
           ]),
-          h('section', { class: 'starbook-aside__content' }, node.children),
+          h('section', { class: 'starlight-aside__content' }, node.children),
         ]
       );
 
@@ -159,6 +159,6 @@ type RemarkPlugins = NonNullable<
   NonNullable<AstroUserConfig['markdown']>['remarkPlugins']
 >;
 
-export function starbookAsides(): RemarkPlugins {
+export function starlightAsides(): RemarkPlugins {
   return [remarkDirective, remarkAsides()];
 }
diff --git a/packages/starbook/layout/PageFrame.astro b/packages/starlight/layout/PageFrame.astro
similarity index 56%
rename from packages/starbook/layout/PageFrame.astro
rename to packages/starlight/layout/PageFrame.astro
index bba5a3af395..facce586d36 100644
--- a/packages/starbook/layout/PageFrame.astro
+++ b/packages/starlight/layout/PageFrame.astro
@@ -10,7 +10,7 @@ const hasSidebar = Astro.slots.has('sidebar');
     hasSidebar && (
       <nav class="sidebar" aria-label="Main">
         <MobileMenuToggle />
-        <div id="starbook__sidebar" class="sidebar-pane">
+        <div id="starlight__sidebar" class="sidebar-pane">
           <div class="sidebar-content">
             <slot name="sidebar" />
           </div>
@@ -29,36 +29,36 @@ const hasSidebar = Astro.slots.has('sidebar');
   }
 
   .header {
-    z-index: var(--sb-z-index-navbar);
+    z-index: var(--sl-z-index-navbar);
     position: fixed;
     inset-inline-start: 0;
     inset-block-start: 0;
     width: 100%;
-    height: var(--sb-nav-height);
-    border-bottom: 1px solid var(--sb-color-hairline-shade);
-    padding: var(--sb-nav-pad-y) var(--sb-nav-pad-x);
-    padding-inline-end: var(--sb-nav-pad-x);
-    background-color: var(--sb-color-bg-nav);
+    height: var(--sl-nav-height);
+    border-bottom: 1px solid var(--sl-color-hairline-shade);
+    padding: var(--sl-nav-pad-y) var(--sl-nav-pad-x);
+    padding-inline-end: var(--sl-nav-pad-x);
+    background-color: var(--sl-color-bg-nav);
   }
 
   .hasSidebar .header {
     padding-inline-end: calc(
-      var(--sb-nav-gap) + var(--sb-nav-pad-x) + var(--sb-menu-button-size)
+      var(--sl-nav-gap) + var(--sl-nav-pad-x) + var(--sl-menu-button-size)
     );
   }
 
   .sidebar-pane {
-    visibility: var(--sb-sidebar-visibility, hidden);
+    visibility: var(--sl-sidebar-visibility, hidden);
     position: fixed;
     inset-block: 0;
     inset-inline-start: 0;
-    padding-top: var(--sb-nav-height);
+    padding-top: var(--sl-nav-height);
     width: 100%;
-    background-color: var(--sb-color-black);
+    background-color: var(--sl-color-black);
   }
 
   :global([aria-expanded='true']) ~ .sidebar-pane {
-    --sb-sidebar-visibility: visible;
+    --sl-sidebar-visibility: visible;
   }
 
   .sidebar-content {
@@ -67,22 +67,22 @@ const hasSidebar = Astro.slots.has('sidebar');
   }
 
   .main-frame {
-    padding-top: var(--sb-nav-height);
+    padding-top: var(--sl-nav-height);
   }
 
   @media (min-width: 50rem) {
     .hasSidebar .header {
-      padding-inline-end: var(--sb-nav-pad-x);
+      padding-inline-end: var(--sl-nav-pad-x);
     }
     .sidebar-pane {
-      --sb-sidebar-visibility: visible;
-      width: var(--sb-sidebar-width);
-      background-color: var(--sb-color-bg-sidebar);
-      border-inline-end: 1px solid var(--sb-color-hairline-shade);
+      --sl-sidebar-visibility: visible;
+      width: var(--sl-sidebar-width);
+      background-color: var(--sl-color-bg-sidebar);
+      border-inline-end: 1px solid var(--sl-color-hairline-shade);
     }
 
     .hasSidebar .main-frame {
-      padding-inline-start: var(--sb-sidebar-width);
+      padding-inline-start: var(--sl-sidebar-width);
     }
   }
 </style>
diff --git a/packages/starbook/layout/TwoColumnContent.astro b/packages/starlight/layout/TwoColumnContent.astro
similarity index 68%
rename from packages/starbook/layout/TwoColumnContent.astro
rename to packages/starlight/layout/TwoColumnContent.astro
index 0bc96bdeb35..14e9db77596 100644
--- a/packages/starbook/layout/TwoColumnContent.astro
+++ b/packages/starlight/layout/TwoColumnContent.astro
@@ -15,16 +15,16 @@
       order: 2;
       position: relative;
       width: calc(
-        var(--sb-sidebar-width) +
-          (100% - var(--sb-content-width) - var(--sb-sidebar-width)) / 2
+        var(--sl-sidebar-width) +
+          (100% - var(--sl-content-width) - var(--sl-sidebar-width)) / 2
       );
     }
 
     .right-sidebar {
       position: fixed;
       top: 0;
-      border-inline-start: 1px solid var(--sb-color-gray-6);
-      padding-top: var(--sb-nav-height);
+      border-inline-start: 1px solid var(--sl-color-gray-6);
+      padding-top: var(--sl-nav-height);
       width: 100%;
       height: 100vh;
       overflow-y: auto;
@@ -34,8 +34,8 @@
     .main-pane {
       order: 1;
       width: calc(
-        var(--sb-content-width) +
-          (100% - var(--sb-content-width) - var(--sb-sidebar-width)) / 2
+        var(--sl-content-width) +
+          (100% - var(--sl-content-width) - var(--sl-sidebar-width)) / 2
       );
     }
   }
diff --git a/packages/starbook/package.json b/packages/starlight/package.json
similarity index 97%
rename from packages/starbook/package.json
rename to packages/starlight/package.json
index 7ca4cf73b3a..4ddf450205f 100644
--- a/packages/starbook/package.json
+++ b/packages/starlight/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "starbook",
+  "name": "starlight",
   "version": "0.0.0",
   "description": "Build beautiful, high-performance documentation websites with Astro",
   "scripts": {},
diff --git a/packages/starbook/schema.ts b/packages/starlight/schema.ts
similarity index 100%
rename from packages/starbook/schema.ts
rename to packages/starlight/schema.ts
diff --git a/packages/starlight/style/asides.css b/packages/starlight/style/asides.css
new file mode 100644
index 00000000000..3fb3d16ef80
--- /dev/null
+++ b/packages/starlight/style/asides.css
@@ -0,0 +1,49 @@
+.starlight-aside {
+  padding: 1rem;
+  border-inline-start: 0.25rem solid;
+  color: var(--sl-color-white);
+}
+.starlight-aside--note {
+  --sl-color-asides-text-accent: var(--sl-color-blue-high);
+  border-color: var(--sl-color-blue);
+  background-color: var(--sl-color-blue-low);
+}
+.starlight-aside--tip {
+  --sl-color-asides-text-accent: var(--sl-color-purple-high);
+  border-color: var(--sl-color-purple);
+  background-color: var(--sl-color-purple-low);
+}
+.starlight-aside--caution {
+  --sl-color-asides-text-accent: var(--sl-color-orange-high);
+  border-color: var(--sl-color-orange);
+  background-color: var(--sl-color-orange-low);
+}
+.starlight-aside--danger {
+  --sl-color-asides-text-accent: var(--sl-color-red-high);
+  border-color: var(--sl-color-red);
+  background-color: var(--sl-color-red-low);
+}
+
+.starlight-aside__title {
+  display: flex;
+  gap: 0.5rem;
+  align-items: center;
+  font-size: var(--sl-text-h5);
+  font-weight: 600;
+  line-height: var(--sl-line-height-headings);
+  color: var(--sl-color-asides-text-accent);
+}
+
+.starlight-aside__icon {
+  font-size: 1.333em;
+  width: 1em;
+  height: 1em;
+}
+
+.starlight-aside__title + .starlight-aside__content {
+  margin-top: 0.5rem;
+}
+
+.starlight-aside__content a {
+  color: var(--sl-color-asides-text-accent);
+}
diff --git a/packages/starlight/style/props.css b/packages/starlight/style/props.css
new file mode 100644
index 00000000000..54b7c4dc529
--- /dev/null
+++ b/packages/starlight/style/props.css
@@ -0,0 +1,197 @@
+:root,
+::backdrop {
+  /* Colors (dark mode) */
+  --sl-color-white: hsl(0, 0%, 100%); /* “white” */
+  --sl-color-gray-1: hsl(231, 23%, 94%);
+  --sl-color-gray-2: hsl(228, 8%, 77%);
+  --sl-color-gray-3: hsl(221, 8%, 56%);
+  --sl-color-gray-4: hsl(225, 9%, 36%);
+  --sl-color-gray-5: hsl(222, 11%, 23%);
+  --sl-color-gray-6: hsl(222, 13%, 16%);
+  --sl-color-black: hsl(223, 13%, 10%);
+
+  --sl-hue-orange: 41;
+  --sl-color-orange-low: hsl(var(--sl-hue-orange), 39%, 22%);
+  --sl-color-orange: hsl(var(--sl-hue-orange), 82%, 63%);
+  --sl-color-orange-high: hsl(var(--sl-hue-orange), 82%, 87%);
+  --sl-hue-green: 101;
+  --sl-color-green-low: hsl(var(--sl-hue-green), 39%, 22%);
+  --sl-color-green: hsl(var(--sl-hue-green), 82%, 63%);
+  --sl-color-green-high: hsl(var(--sl-hue-green), 82%, 87%);
+  --sl-hue-blue: 234;
+  --sl-color-blue-low: hsl(var(--sl-hue-blue), 54%, 20%);
+  --sl-color-blue: hsl(var(--sl-hue-blue), 100%, 60%);
+  --sl-color-blue-high: hsl(var(--sl-hue-blue), 100%, 87%);
+  --sl-hue-purple: 281;
+  --sl-color-purple-low: hsl(var(--sl-hue-purple), 39%, 22%);
+  --sl-color-purple: hsl(var(--sl-hue-purple), 82%, 63%);
+  --sl-color-purple-high: hsl(var(--sl-hue-purple), 82%, 89%);
+  --sl-hue-red: 339;
+  --sl-color-red-low: hsl(var(--sl-hue-red), 39%, 22%);
+  --sl-color-red: hsl(var(--sl-hue-red), 82%, 63%);
+  --sl-color-red-high: hsl(var(--sl-hue-red), 82%, 87%);
+
+  --sl-hue-accent: var(--sl-hue-blue);
+  --sl-color-accent-low: hsl(var(--sl-hue-accent), 54%, 20%);
+  --sl-color-accent: hsl(var(--sl-hue-accent), 100%, 60%);
+  --sl-color-accent-high: hsl(var(--sl-hue-accent), 100%, 87%);
+
+  --sl-color-text: var(--sl-color-gray-2);
+  --sl-color-text-accent: var(--sl-color-accent-high);
+  --sl-color-text-invert: var(--sl-color-accent-low);
+  --sl-color-bg: var(--sl-color-black);
+  --sl-color-bg-nav: var(--sl-color-gray-6);
+  --sl-color-bg-sidebar: var(--sl-color-gray-6);
+  --sl-color-bg-inline-code: var(--sl-color-gray-5);
+  --sl-color-hairline: var(--sl-color-gray-6);
+  --sl-color-hairline-shade: var(--sl-color-black);
+
+  --sl-color-backdrop-overlay: hsla(223, 13%, 10%, 0.66);
+
+  /* Shadows (dark mode) */
+  --sl-shadow-sm: 0px 1px 1px hsla(0, 0%, 0%, 0.12),
+    0px 2px 1px hsla(0, 0%, 0%, 0.24);
+  --sl-shadow-md: 0px 8px 4px hsla(0, 0%, 0%, 0.08),
+    0px 5px 2px hsla(0, 0%, 0%, 0.08), 0px 3px 2px hsla(0, 0%, 0%, 0.12),
+    0px 1px 1px hsla(0, 0%, 0%, 0.15);
+  --sl-shadow-lg: 0px 25px 7px hsla(0, 0%, 0%, 0.03),
+    0px 16px 6px hsla(0, 0%, 0%, 0.1), 0px 9px 5px hsla(223, 13%, 10%, 0.33),
+    0px 4px 4px hsla(0, 0%, 0%, 0.75), 0px 4px 2px hsla(0, 0%, 0%, 0.25);
+
+  /* Gradients (unchanged across dark & light modes) */
+  --sl-gradient-blue-purple: linear-gradient(
+    to bottom,
+    hsl(234, 100%, 59.8%) 0%,
+    hsl(281, 82.1%, 62.7%) 100%
+  );
+  --sl-gradient-red-pink: linear-gradient(
+    to bottom,
+    hsl(0, 67.9%, 52.4%) 0%,
+    hsl(295, 100%, 62.7%) 100%
+  );
+  --sl-gradient-orange-yellow: linear-gradient(
+    to bottom,
+    hsl(54, 93.5%, 57.6%) 0%,
+    hsl(14, 100%, 66.5%) 100%
+  );
+  --sl-gradient-blue-green: linear-gradient(
+    to bottom,
+    hsl(165, 86.6%, 62%) 0%,
+    hsl(227, 58.4%, 44.3%) 100%
+  );
+
+  /* Text size and line height */
+  --sl-text-xs: 0.8125rem; /* 13px */
+  --sl-text-sm: 0.875rem; /* 14px */
+  --sl-text-base: 1rem; /* 16px */
+  --sl-text-lg: 1.125rem; /* 18px */
+  --sl-text-xl: 1.25rem; /* 20px */
+  --sl-text-2xl: 1.5rem; /* 24px */
+  --sl-text-3xl: 1.8125rem; /* 29px */
+  --sl-text-4xl: 2.1875rem; /* 35px */
+  --sl-text-5xl: 2.625rem; /* 42px */
+
+  --sl-text-body: var(--sl-text-base);
+  --sl-text-body-sm: var(--sl-text-xs);
+  --sl-text-code: var(--sl-text-base);
+  --sl-text-code-sm: var(--sl-text-xs);
+  --sl-text-h1: var(--sl-text-4xl);
+  --sl-text-h2: var(--sl-text-3xl);
+  --sl-text-h3: var(--sl-text-2xl);
+  --sl-text-h4: var(--sl-text-xl);
+  --sl-text-h5: var(--sl-text-lg);
+
+  --sl-line-height: 1.8;
+  --sl-line-height-headings: 1.2;
+
+  --sl-font-system: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
+    'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif,
+    'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
+  --sl-font-system-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
+    'Liberation Mono', 'Courier New', monospace;
+  --__sb-font: var(--sl-font, ''), var(--sl-font-system);
+  --__sb-font-mono: var(--sl-font-mono, ''), var(--sl-font-system-mono);
+
+  /** Key layout values */
+  --sl-nav-height: 4rem;
+  --sl-nav-pad-x: 1.5rem;
+  --sl-nav-pad-y: 0.75rem;
+  --sl-sidebar-width: 18.75rem;
+  --sl-sidebar-pad-x: 1rem;
+  --sl-content-width: 45rem;
+  --sl-content-pad-x: 1rem;
+  --sl-menu-button-size: 2rem;
+  --sl-nav-gap: var(--sl-content-pad-x);
+
+  /* Global z-index values */
+  --sl-z-index-navbar: 10;
+  --sl-z-index-skiplink: 20;
+}
+
+:root[data-theme='light'],
+[data-theme='light'] ::backdrop {
+  /* Colours (light mode) */
+  --sl-color-white: hsl(223, 13%, 10%);
+  --sl-color-gray-1: hsl(222, 13%, 16%);
+  --sl-color-gray-2: hsl(222, 11%, 23%);
+  --sl-color-gray-3: hsl(225, 9%, 36%);
+  --sl-color-gray-4: hsl(221, 8%, 56%);
+  --sl-color-gray-5: hsl(228, 8%, 77%);
+  --sl-color-gray-6: hsl(231, 23%, 94%);
+  --sl-color-gray-7: hsl(240, 20%, 97%);
+  --sl-color-black: hsl(0, 0%, 100%);
+
+  --sl-color-orange-high: hsl(var(--sl-hue-orange), 80%, 25%);
+  --sl-color-orange: hsl(var(--sl-hue-orange), 90%, 60%);
+  --sl-color-orange-low: hsl(var(--sl-hue-orange), 90%, 88%);
+  --sl-color-green-high: hsl(var(--sl-hue-green), 80%, 22%);
+  --sl-color-green: hsl(var(--sl-hue-green), 90%, 60%);
+  --sl-color-green-low: hsl(var(--sl-hue-green), 85%, 90%);
+  --sl-color-blue-high: hsl(var(--sl-hue-blue), 80%, 30%);
+  --sl-color-blue: hsl(var(--sl-hue-blue), 90%, 60%);
+  --sl-color-blue-low: hsl(var(--sl-hue-blue), 88%, 90%);
+  --sl-color-purple-high: hsl(var(--sl-hue-purple), 39%, 30%);
+  --sl-color-purple: hsl(var(--sl-hue-purple), 90%, 60%);
+  --sl-color-purple-low: hsl(var(--sl-hue-purple), 80%, 90%);
+  --sl-color-red-high: hsl(var(--sl-hue-red), 80%, 30%);
+  --sl-color-red: hsl(var(--sl-hue-red), 90%, 60%);
+  --sl-color-red-low: hsl(var(--sl-hue-red), 80%, 90%);
+
+  --sl-color-accent-high: hsl(var(--sl-hue-accent), 80%, 30%);
+  --sl-color-accent: hsl(var(--sl-hue-accent), 90%, 60%);
+  --sl-color-accent-low: hsl(var(--sl-hue-accent), 88%, 90%);
+
+  --sl-color-text-accent: var(--sl-color-accent);
+  --sl-color-text-invert: var(--sl-color-black);
+  --sl-color-bg-nav: var(--sl-color-gray-7);
+  --sl-color-bg-sidebar: var(--sl-color-bg);
+  --sl-color-bg-inline-code: var(--sl-color-gray-6);
+  --sl-color-hairline-shade: var(--sl-color-gray-6);
+
+  --sl-color-backdrop-overlay: hsla(225, 9%, 36%, 0.66);
+
+  /* Shadows (light mode) */
+  --sl-shadow-sm: 0px 1px 1px hsla(0, 0%, 0%, 0.06),
+    0px 2px 1px hsla(0, 0%, 0%, 0.06);
+  --sl-shadow-md: 0px 8px 4px hsla(0, 0%, 0%, 0.03),
+    0px 5px 2px hsla(0, 0%, 0%, 0.03), 0px 3px 2px hsla(0, 0%, 0%, 0.06),
+    0px 1px 1px hsla(0, 0%, 0%, 0.06);
+  --sl-shadow-lg: 0px 25px 7px rgba(0, 0, 0, 0.01),
+    0px 16px 6px hsla(0, 0%, 0%, 0.03), 0px 9px 5px hsla(223, 13%, 10%, 0.08),
+    0px 4px 4px hsla(0, 0%, 0%, 0.16), 0px 4px 2px hsla(0, 0%, 0%, 0.04);
+}
+
+@media (min-width: 50em) {
+  :root {
+    --sl-text-h1: var(--sl-text-5xl);
+    --sl-text-h2: var(--sl-text-4xl);
+    --sl-text-h3: var(--sl-text-3xl);
+    --sl-text-h4: var(--sl-text-2xl);
+  }
+}
+
+@media (min-width: 72rem) {
+  :root {
+    --sl-content-pad-x: 1.5rem;
+  }
+}
diff --git a/packages/starbook/style/reset.css b/packages/starlight/style/reset.css
similarity index 70%
rename from packages/starbook/style/reset.css
rename to packages/starlight/style/reset.css
index 4806e1f2bb6..5ccb4d2e9ee 100644
--- a/packages/starbook/style/reset.css
+++ b/packages/starlight/style/reset.css
@@ -10,7 +10,7 @@
 
 html {
   color-scheme: dark;
-  accent-color: var(--sb-color-accent);
+  accent-color: var(--sl-color-accent);
 }
 
 html[data-theme='light'] {
@@ -19,10 +19,10 @@ html[data-theme='light'] {
 
 body {
   font-family: var(--__sb-font);
-  line-height: var(--sb-line-height);
+  line-height: var(--sl-line-height);
   -webkit-font-smoothing: antialiased;
-  color: var(--sb-color-text);
-  background-color: var(--sb-color-bg);
+  color: var(--sl-color-text);
+  background-color: var(--sl-color-bg);
 }
 
 input,
diff --git a/packages/starlight/style/shiki.css b/packages/starlight/style/shiki.css
new file mode 100644
index 00000000000..704eea85bcc
--- /dev/null
+++ b/packages/starlight/style/shiki.css
@@ -0,0 +1,13 @@
+:root {
+  --astro-code-color-text: var(--sl-color-white);
+  --astro-code-color-background: var(--sl-color-gray-6);
+  --astro-code-token-constant: var(--sl-color-blue-high);
+  --astro-code-token-string: var(--sl-color-green-high);
+  --astro-code-token-comment: var(--sl-color-gray-2);
+  --astro-code-token-keyword: var(--sl-color-purple-high);
+  --astro-code-token-parameter: var(--sl-color-red-high);
+  --astro-code-token-function: var(--sl-color-red-high);
+  --astro-code-token-string-expression: var(--sl-color-green-high);
+  --astro-code-token-punctuation: var(--sl-color-gray-2);
+  --astro-code-token-link: var(--sl-color-blue-high);
+}
diff --git a/packages/starbook/style/util.css b/packages/starlight/style/util.css
similarity index 100%
rename from packages/starbook/style/util.css
rename to packages/starlight/style/util.css
diff --git a/packages/starlight/types.ts b/packages/starlight/types.ts
new file mode 100644
index 00000000000..70513dc27f0
--- /dev/null
+++ b/packages/starlight/types.ts
@@ -0,0 +1 @@
+export { StarlightConfig } from './utils/user-config';
diff --git a/packages/starbook/utils/git.ts b/packages/starlight/utils/git.ts
similarity index 100%
rename from packages/starbook/utils/git.ts
rename to packages/starlight/utils/git.ts
diff --git a/packages/starbook/utils/localizedUrl.ts b/packages/starlight/utils/localizedUrl.ts
similarity index 95%
rename from packages/starbook/utils/localizedUrl.ts
rename to packages/starlight/utils/localizedUrl.ts
index 4eec0a49585..19f15704c4d 100644
--- a/packages/starbook/utils/localizedUrl.ts
+++ b/packages/starlight/utils/localizedUrl.ts
@@ -1,4 +1,4 @@
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 
 /**
  * Get the equivalent of the passed URL for the passed locale.
diff --git a/packages/starbook/utils/navigation.ts b/packages/starlight/utils/navigation.ts
similarity index 98%
rename from packages/starbook/utils/navigation.ts
rename to packages/starlight/utils/navigation.ts
index 5c45bde6eb6..1fa19cf9d86 100644
--- a/packages/starbook/utils/navigation.ts
+++ b/packages/starlight/utils/navigation.ts
@@ -1,6 +1,6 @@
 import { basename, dirname } from 'node:path';
-import config from 'virtual:starbook/user-config';
-import { slugToPathname } from '../utils/slugs';
+import config from 'virtual:starlight/user-config';
+import { slugToPathname } from './slugs';
 import { Route, getLocaleRoutes, routes } from './routing';
 import type {
   AutoSidebarGroup,
diff --git a/packages/starbook/utils/routing.ts b/packages/starlight/utils/routing.ts
similarity index 98%
rename from packages/starbook/utils/routing.ts
rename to packages/starlight/utils/routing.ts
index 38154e66270..138e7f68ce9 100644
--- a/packages/starbook/utils/routing.ts
+++ b/packages/starlight/utils/routing.ts
@@ -1,6 +1,6 @@
 import type { GetStaticPathsItem } from 'astro';
 import { CollectionEntry, getCollection } from 'astro:content';
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 import {
   LocaleData,
   localizedSlug,
diff --git a/packages/starbook/utils/slugs.ts b/packages/starlight/utils/slugs.ts
similarity index 98%
rename from packages/starbook/utils/slugs.ts
rename to packages/starlight/utils/slugs.ts
index 34eef630b49..7ce5d506fd8 100644
--- a/packages/starbook/utils/slugs.ts
+++ b/packages/starlight/utils/slugs.ts
@@ -1,5 +1,5 @@
 import type { CollectionEntry } from 'astro:content';
-import config from 'virtual:starbook/user-config';
+import config from 'virtual:starlight/user-config';
 
 export interface LocaleData {
   /** Writing direction. */
diff --git a/packages/starbook/utils/user-config.ts b/packages/starlight/utils/user-config.ts
similarity index 94%
rename from packages/starbook/utils/user-config.ts
rename to packages/starlight/utils/user-config.ts
index 6b6064ec4ca..444a3baa083 100644
--- a/packages/starbook/utils/user-config.ts
+++ b/packages/starlight/utils/user-config.ts
@@ -84,7 +84,7 @@ const SidebarGroupSchema: z.ZodType<
   ManualSidebarGroup | z.infer<typeof AutoSidebarGroupSchema>
 > = z.union([ManualSidebarGroupSchema, AutoSidebarGroupSchema]);
 
-const StarbookUserConfigSchema = z.object({
+const StarlightUserConfigSchema = z.object({
   /** Title for your website. Will be used in metadata and as browser tab title. */
   title: z
     .string()
@@ -188,21 +188,21 @@ const StarbookUserConfigSchema = z.object({
   sidebar: SidebarGroupSchema.array().optional(),
 
   /**
-   * Provide CSS files to customize the look and feel of StarBook.
+   * Provide CSS files to customize the look and feel of your Starlight site.
    *
    * Supports local CSS files relative to the root of your project,
    * e.g. `'/src/custom.css'`, and CSS you installed as an npm
    * module, e.g. `'@fontsource/roboto'`.
    *
    * @example
-   * starbook({
+   * starlight({
    *  customCss: ['/src/custom-styles.css', '@fontsource/roboto'],
    * })
    */
   customCss: z.string().array().optional().default([]),
 });
 
-export const StarbookConfigSchema = StarbookUserConfigSchema.strict().transform(
+export const StarlightConfigSchema = StarlightUserConfigSchema.strict().transform(
   ({ locales, defaultLocale, ...config }, ctx) => {
     if (locales !== undefined && Object.keys(locales).length > 1) {
       // This is a multilingual site (more than one locale configured).
@@ -218,7 +218,7 @@ export const StarbookConfigSchema = StarbookUserConfigSchema.strict().transform(
           code: 'custom',
           message:
             'Could not determine the default locale. ' +
-            'Please make sure `defaultLocale` in your StarBook config is one of ' +
+            'Please make sure `defaultLocale` in your Starlight config is one of ' +
             availableLocales,
         });
         return z.NEVER;
@@ -246,5 +246,5 @@ export const StarbookConfigSchema = StarbookUserConfigSchema.strict().transform(
   }
 );
 
-export type StarbookConfig = z.infer<typeof StarbookConfigSchema>;
-export type StarBookUserConfig = z.input<typeof StarbookConfigSchema>;
+export type StarlightConfig = z.infer<typeof StarlightConfigSchema>;
+export type StarlightUserConfig = z.input<typeof StarlightConfigSchema>;
diff --git a/packages/starlight/virtual.d.ts b/packages/starlight/virtual.d.ts
new file mode 100644
index 00000000000..bcf8563f6ac
--- /dev/null
+++ b/packages/starlight/virtual.d.ts
@@ -0,0 +1,9 @@
+declare module 'virtual:starlight/user-config' {
+  const Config: import('./types').StarlightConfig;
+  export default Config;
+}
+declare module 'virtual:starlight/project-context' {
+  export default { root: string };
+}
+
+declare module 'virtual:starlight/user-css' {}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 78f5b546632..8ee2a83bc7e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -13,11 +13,11 @@ importers:
       astro:
         specifier: ^2.1.7
         version: 2.1.7(@types/node@18.15.11)
-      starbook:
+      starlight:
         specifier: workspace:*
-        version: link:../packages/starbook
+        version: link:../packages/starlight
 
-  packages/starbook:
+  packages/starlight:
     dependencies:
       '@astrojs/mdx':
         specifier: ^0.19.0
@@ -92,28 +92,6 @@ packages:
       vscode-languageserver-types: 3.17.3
       vscode-uri: 3.0.7
 
-  /@astrojs/markdown-remark@2.1.2(astro@2.1.7):
-    resolution: {integrity: sha512-rYkmFEv2w7oEk6ZPgxHkhWzwcxSUGc1vJU0cbCu5sHF8iFNnc1cmMsjXWa5DrU5sCEf8VVYE1iFlbbnFzvHQJw==}
-    peerDependencies:
-      astro: ^2.1.5
-    dependencies:
-      '@astrojs/prism': 2.1.1
-      astro: 2.1.7(@types/node@18.15.11)
-      github-slugger: 1.5.0
-      import-meta-resolve: 2.2.2
-      rehype-raw: 6.1.1
-      rehype-stringify: 9.0.3
-      remark-gfm: 3.0.1
-      remark-parse: 10.0.1
-      remark-rehype: 10.1.0
-      remark-smartypants: 2.0.0
-      shiki: 0.11.1
-      unified: 10.1.2
-      unist-util-visit: 4.1.2
-      vfile: 5.3.7
-    transitivePeerDependencies:
-      - supports-color
-
   /@astrojs/markdown-remark@2.1.4(astro@2.1.7):
     resolution: {integrity: sha512-z5diCcFo2xkBAJ11KySAIKpZZkULZmzUvWsZ2VWIOrR6QrEgEfVl5jTpgPSedx4m+xUPuemlUviOotGB7ItNsQ==}
     peerDependencies:
@@ -135,7 +113,6 @@ packages:
       vfile: 5.3.7
     transitivePeerDependencies:
       - supports-color
-    dev: false
 
   /@astrojs/mdx@0.19.0(astro@2.1.7)(rollup@3.19.1):
     resolution: {integrity: sha512-McFpMV+npinIEKnY5t9hsdzLd76g78GgIRUPxem2OeXPNB8xr2pNS28GeU0+6Pn5STnB+sgcyyeqXLgzauOlMQ==}
@@ -887,7 +864,7 @@ packages:
     dependencies:
       '@astrojs/compiler': 1.3.0
       '@astrojs/language-server': 0.28.3
-      '@astrojs/markdown-remark': 2.1.2(astro@2.1.7)
+      '@astrojs/markdown-remark': 2.1.4(astro@2.1.7)
       '@astrojs/telemetry': 2.1.0
       '@astrojs/webapi': 2.1.0
       '@babel/core': 7.21.3