::html_document()`](https://github.com/rstudio/rmarkdown/blob/master/R/html_document.R):

```js
bookdown::gitbook:
  css: [css/arm.css]
  highlight: kate
  config: ???
```

--

.footnote[
+ [css: use Hao Zhu's `bookdownThemeEditor`!](https://github.com/hebrewseniorlife/bookdownThemeEditor)
+ [highlight](https://bookdown.org/yihui/bookdown/yaml-options.html): `default`, `tango`, `pygments`, `kate`, `monochrome`, `espresso`, `zenburn`, and `haddock`
]

---
name: output-config



.pull-left[
### .center[.fancy