dark-light-brand-file.qmd

---
format: html
title: light and dark brand files
brand:
  dark: dark-brand.yml
  light: light-brand.yml
---

```{r}
#| lst-label: lst-fibonacci
#| lst-cap: A naive algorithm for computing Fibonacci numbers.
fib <- function(x) {
  if (x < 2) 1 else fib(x - 1) + fib(x - 2)
}
```

Here is [a link](https://example.com).

{{< lipsum 2 >}}