Extensions #

Lantern currently has one markdown extension: admonitions. These are highlighted blocks for notes, warnings, tips, and similar callouts.

Supported types #

Type	Aliases
note
info
tip	hint
important
warning	caution, attention
danger	error
success	check, done
question	help, faq
example
quote
abstract	summary, tldr
todo
bug
failure	fail, missing

GitHub and Obsidian syntax #

> [!NOTE]
> Useful context for the slide.

> [!TIP]
> A practical suggestion.

> [!IMPORTANT]
> Something the audience should not miss.

> [!WARNING]
> A risk or caveat.

> [!CAUTION]
> A stronger warning.

You can add a title after the marker:

> [!WARNING] Production caveat
> This path assumes the database is already migrated.

Obsidian-style lowercase markers work too:

> [!quote]
> The quote text.

> [!example]
> Example content.

> [!bug]
> Known issue.

Fence syntax #

Lantern also accepts a simple fence form:

:::note
This is a note.
:::

:::warning
This is a warning.
:::

:::tip
This is a tip.
:::

Fence admonitions currently accept the type only.

Custom titles are supported for the blockquote form, not for fence admonitions.

Rendering #

Admonitions render with themed colors, Unicode icons, and rounded borders.

Their content is parsed into lantern's normal slide blocks, so paragraphs, lists, and code blocks can appear inside an admonition.