Code blocks

Each code block has a language. Options add a title, line numbers or a mark on a line.

What you write:

Example

```bash title="Terminal"
ferry scale api 3 # [!code highlight]
```

What the reader sees:

Terminal

ferry scale api 3

Options

Always set a language. Write the options after the language.

Option	Effect
`title="Terminal"`	A title above the block
`lineNumbers`	A number before each line
`noCopy`	No copy button. Use it for output.

Write the mark in a comment at the end of the line. Use the comment form of the language of the block.

Mark	Effect
`[!code highlight]`	The line has a color behind it.
`[!code ++]` / `[!code --]`	The line shows as added or as removed.
`[!code focus]`	The other lines step back.

Figures

Four components draw the pictures of a page. A fifth component explains a technical name.

Generated references

Four reference files come from the Rust code. A script writes them, thus they always agree with the code.