5436d3e5fc
The functions can remain defined because, nowadays, the test harness runs each test in a subshell; but that's a well-known property of the test harness so need not be mentioned explicitly. Inspired by discussion on issue #443.
zsh-syntax-highlighting / highlighters
Navigate into the individual highlighters' documentation to see
what styles ($ZSH_HIGHLIGHT_STYLES
keys) each highlighter defines.
Refer to the documentation on highlighters for further information.