If you want syntax highlighting support for Navi in Vim, add those syntax rules
to your syntax files such as at $VIMRUNTIME/syntax/navi.vim
.
The rules are defined based on the Cheatsheet syntax.
syntax match Comment "\v^;.*$"
syntax match Statement "\v^\%.*$"
syntax match Operator "\v^\#.*$"
syntax match String "\v\<.*\>"
syntax match String "\v^\$.*$"