hugo/docs/content/en/functions/highlight.md

title	linktitle	description	godocref	date	publishdate	lastmod	categories	menu	keywords	signature	workson	hugoversion	relatedfuncs	deprecated
highlight	highlight	Takes a string of code and language declaration and uses Chroma to return syntax-highlighted HTML.		2017-02-01	2017-02-01	2017-02-01	functions	docs parent functions	highlighting code blocks syntax	highlight INPUT LANG OPTIONS				false

highlight is used in Hugo's built-in highlight shortcode.