dark-brand-only-file.qmd

---
format: html
title: dark brand in file
brand: 
  dark: dark-brand.yml
---

Quarto creates a default light mode if only dark mode is specified.

```{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 >}}