b47387b55e
The existing check was bogus: parameter expansion doesn't depend on whether there happens to be a command literally called «$foo». This enables the parameter elision logic to kick in for words not in command position. Fixes #239.
zsh-syntax-highlighting / highlighters
Navigate into the individual highlighters' documentation to see
what styles ($ZSH_HIGHLIGHT_STYLES
keys) each highlighter defines.
Refer to the documentation on highlighters for further information.