Frontmatter Merging

You can provide frontmatter instructions from both your main entry and external markdown pages. If there are duplicate keys in them, the ones from the main entry have the higher priority. For example:

::: code-group

---
src: ./cover.md
background: https://sli.dev/bar.png // [!code highlight]
class: text-center
---

---
layout: cover
background: https://sli.dev/foo.png // [!code highlight]
---

# Cover

Cover Page

:::

They will end up being equivalent to the following page:

---
layout: cover
background: https://sli.dev/bar.png // [!code highlight]
class: text-center
---

# Cover

Cover Page