Which tex package does Rmarkdown use by default to implement syntax highlighting and how to change the highlighting colors?
I have written a style file which i use as a template for my beamer presentations written in Rmarkdown.
When I include a code chunk, e.g:
g = ggplot(mtcars, aes(x=wt, y=mpg, color=cyl, size=cyl)) +
geom_point() +
theme(legend.position="none")
This is visible in the knitted pdf as a code chunk as it apparently draws on some RMD defaults not specified in my style file.
By adding the following to the style file, I was able to change the background color of the code chunk and the font size:
\let\oldShaded\Shaded
\let\endoldShaded\endShaded
\renewenvironment{Shaded}{\footnotesize\oldShaded}{\endoldShaded}
\definecolor{shadecolor}{RGB}{ 221, 219, 217}
Now I would also like to change the syntax highlighting color to better match the overall style of my template.