How can highlight specific lines in code blocks?

[100gle]

What version of starlight are you using?

latest

What is your idea?

The current version of Starlight doesn't seem to highlight specific lines in a code block as the Astro documentation does. For example:

```json title="package.json" del={2} ins={3} ins="astro check && tsc --noEmit && "
  "scripts": {
    "build": "astro build",
    "build": "astro check && tsc --noEmit && astro build",
  },
```

Is this because we are waiting for the integration of expressive-code into Starlight? #742

Why is this feature necessary?

I wanna to make my documentation be more readable.

Do you have examples of this feature in other projects?

No response

Participation

• I am willing to submit a pull request for this issue.

[HiDeoo]

Is this because we are waiting for the integration of expressive-code into Starlight? #742

Yes, the Astro documentation is already using Expressive Code which supports markers through @expressive-code/plugin-text-markers.

You can even preview it yourself already in the deploy preview of #742, e.g. this page.