How do I tell R Markdown / knitr to respect crayon color codes? I have the following R Markdown report.
---
title: "MWE"
author: "Will Landau"
date: "11/20/2017"
output: html_document
---
```{r color}
message(crayon::make_style("green")("My green message."))
```
When I knit and render it, I see the output
## My green message.
but the text color is not green.
Since fansi is now on CRAN, I will add a solution that uses it:
---
title: "fansi Rmd"
output: html_document
---
```{r color, echo = FALSE}
options(crayon.enabled = TRUE)
knitr::knit_hooks$set(message = function(x, options){
paste0(
"<pre class=\"r-output\"><code>",
fansi::sgr_to_html(x = x, warn = FALSE),
"</code></pre>"
)
})
message(crayon::make_style("green")("My green message."))
```