#Sidebar overlide

25 messages · Page 1 of 1 (latest)

honest sparrow
#

I want to overlide sidebar of starlight.

I want to add icon (fluent-emoji-flat) to sidebar.

honest mulchBOT
#

Hi @honest sparrow. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

#

To override the sidebar in Starlight and add an icon, you have a couple of options depending on your needs:

1. Custom Sidebar Configuration

You can customize the sidebar using the sidebar property in your Starlight config or in the <StarlightPage /> component. Starlight provides a built-in <Icon> component for displaying icons from its own icon set, but there is no mention in the knowledge sources of direct support for third-party icon sets like "fluent-emoji-flat" in the sidebar configuration.

You can add Starlight's built-in icons to sidebar items by customizing the label with Unicode emoji or by using the <Icon> component in custom components, but not directly in the sidebar config object.

Example with a built-in icon (using Unicode emoji in the label):

starlight({
  sidebar: [
    {
      label: '🚀 Home',
      link: '/',
    },
    {
      label: 'Docs',
      items: [
        { label: '📄 Getting Started', link: '/getting-started' },
      ],
    },
  ],
});

Sidebar configuration reference

2. Overriding the Sidebar Component

If you want to use a custom icon set (like "fluent-emoji-flat"), you would need to override the default Sidebar component. This involves:

  • Creating your own Astro component to replace the default sidebar.
  • Importing and rendering your desired icons (e.g., from "fluent-emoji-flat") in your custom component.
  • Registering your custom component in the components config under the Sidebar key.

Example override registration:

import { defineConfig } from 'astro/config';
import starlight from '@astrojs/starlight';
#

export default defineConfig({
integrations: [
starlight({
components: {
Sidebar: './src/components/CustomSidebar.astro',
},
}),
],
});

[Overriding components guide](<https://starlight.astro.build/guides/overriding-components/#how-to-override>)  
[Sidebar component reference](<https://starlight.astro.build/reference/overrides/#sidebar>)

**Note:** The knowledge sources do not provide a code example for using third-party icon sets in the sidebar, nor do they document a way to inject arbitrary components or HTML into the sidebar config. You must create a custom sidebar component to achieve this.

---

**Summary:**  
- You can add Unicode emoji to sidebar labels directly.
- To use "fluent-emoji-flat" or any custom icon, override the `Sidebar` component and render the icons manually.
- There is no built-in support for third-party icon sets in the sidebar config according to the provided documentation.
----------------------
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#

@honest sparrow Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest sparrow
#

@honest mulch
I will override sidebar components.
Finally, I want to

sidebar: [
  { label: 'hoge', icon: 'fluent-emoji-flat:flower', autogenerate: {directory: 'huga'}}
]
honest mulchBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

I'm sorry, but the knowledge sources do not mention support for an icon property in the sidebar configuration. The documented sidebar configuration options include properties like label, link, slug, items, autogenerate, badge, and attrs, but there is no reference to an icon property for sidebar items. You can use Unicode emoji directly in the label, but specifying an icon by name (such as icon: 'fluent-emoji-flat:flower') is not supported in the sidebar config according to the available documentation Reference: SidebarItem.

If you want to display custom icons (including from "fluent-emoji-flat") in the sidebar, you would need to override the Sidebar component and implement the icon rendering yourself. The knowledge sources do not provide an example or built-in support for this use case Overriding Components Guide.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@honest sparrow Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest sparrow
#

@honest mulch
I will

          { 
            label: '<img src="/assets/houston.webp" alt="Houston" style="width:20px; margin-right:5px;"> Home Page',
            autogenerate: { directory: 'home' }
          },

but img didn't display

honest mulchBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

Starlight’s sidebar configuration does not support rendering raw HTML (such as an <img> tag) inside the label property. The label is treated as plain text, so HTML tags will not be rendered as images or markup—they will be displayed as literal text or ignored.

The knowledge sources confirm that the sidebar configuration supports properties like label, link, slug, items, autogenerate, badge, and attrs, but there is no mention of HTML or component rendering within the label field SidebarItem reference. This means you cannot use an <img> tag in the label to display an image in the sidebar.

If you want to display an image or custom icon in the sidebar, you must override the Sidebar component and implement custom rendering logic. The documentation provides guidance on how to override components, but does not provide a built-in way to inject HTML or images into sidebar labels via configuration Overriding Components Guide.

Summary:

  • HTML in the label property will not render as an image.
  • To display images or custom icons, override the Sidebar component and handle rendering yourself.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@honest sparrow Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest sparrow
#

@honest mulch
I want to override Card component

honest mulchBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

To override the Card component in Starlight, follow these steps:

  1. Create your custom Card component
    Create a new Astro component (e.g., src/components/MyCard.astro) with your desired customizations.

  2. Register your custom component in the Starlight config
    In your astro.config.mjs, use the components option to tell Starlight to use your custom Card component:

    import { defineConfig } from 'astro/config';
import starlight from '@astrojs/starlight';

export default defineConfig({
  integrations: [
    starlight({
      components: {
        Card: './src/components/MyCard.astro',
      },
    }),
  ],
});

    This will replace Starlight’s default Card component with your custom one everywhere the Card is used How to override components config.

  3. (Optional) Reference the default Card implementation
    If you want to extend or reuse the default Card’s logic, you can import it in your custom component:

    ---

// Example: import Default from '@astrojs/starlight/components/Card.astro';

<!-- Your custom markup here -->


**Note:**  
- The knowledge sources do not provide a code example for a custom Card, but the process is the same as overriding any other Starlight component.
- You can find the default Card implementation for reference [here](<https://github.com/withastro/starlight/blob/main/packages/starlight/user-components/Card.astro>).
#

Summary:
Override the Card component by creating your own Astro component and registering it in the Starlight components config option. This approach is fully supported and documented in the Starlight guides.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@honest sparrow Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest sparrow
#

@honest mulch
Is this correct?

      components: {
        Sidebar: './src/components/Sidebar.astro',
        Card: './src/components/Card.astro'
      },
honest mulchBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

Yes, your configuration is correct according to the knowledge sources. To override Starlight’s built-in components, you provide the paths to your custom components in the components option within your Starlight integration in astro.config.mjs. Your example:

components: {
  Sidebar: './src/components/Sidebar.astro',
  Card: './src/components/Card.astro'
},

follows the documented approach for overriding components components config How to override.

Just ensure that the paths point to valid Astro component files in your project.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@honest sparrow Kapa.ai is still learning and improving, please let me know how I did by reacting below.

honest sparrow
#

@honest mulch
オブジェクト リテラルは既知のプロパティのみ指定できます。'Card' は型 '{ Head?: string | undefined; ThemeProvider?: string | undefined; SkipLink?: string | undefined; PageFrame?: string | undefined; MobileMenuToggle?: string | undefined; TwoColumnContent?: string | undefined; ... 21 more ...; EditLink?: string | undefined; }' に存在しません。

honest mulchBOT
#

Let me check the knowledge base for you again. One moment! :books:

#

ご指摘のエラー

オブジェクト リテラルは既知のプロパティのみ指定できます。'Card' は型 '{ ... }' に存在しません。

について、知識ソースを確認したところ、Starlight の components 設定で上書きできるコンポーネントの一覧には Card は含まれていません。
components オプションで上書きできるのは、Overrides Reference に記載されているコンポーネントのみです。
Card コンポーネントはこの一覧に含まれていないため、components: { Card: ... } のように指定すると型エラーになります。

まとめ：

  • Card は components 設定で上書きできません。
  • 上書き可能なコンポーネントは Overrides Reference をご確認ください。

このため、Card コンポーネントを全体で差し替えることは Starlight の公式な方法ではサポートされていません。
必要に応じて、独自のカードコンポーネントを作成し、MDXやMarkdocで直接利用する方法をご検討ください。

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: