zsh-syntax-highlighting/docs/highlighters/root.md

zsh-syntax-highlighting / highlighters / root

This is the root highlighter, that highlights the whole line if the current
user is root.

How to tweak it

This highlighter defines the following styles:

• root - the style for the whole line if the current user is root.

To override one of those styles, change its entry in ZSH_HIGHLIGHT_STYLES,
for example in ~/.zshrc:

ZSH_HIGHLIGHT_STYLES[root]='bg=red'

The syntax for values is the same as the syntax of "types of highlighting" of
the zsh builtin $zle_highlight array, which is documented in the zshzle(1)
manual page.