patch 8.0.1360: the Terminal highlighting doesn't work in a terminal commit https://github.com/vim/vim/commit/76bb7196f5102c9929959d710e8ed97a19affa4d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 30 22:07:07 2017 +0100 patch 8.0.1360: the Terminal highlighting doesn't work in a terminal Problem: The Terminal highlighting doesn't work in a terminal. (Ozaki Kiichi) Solution: Use the Terminal highlighting when the cterm index is zero.

" Vim filetype plugin
" Language:	Dockerfile
" Maintainer:   Honza Pokorny <http://honza.ca>
" Last Change:	2014 Aug 29

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
  finish
endif

" Don't load another plugin for this buffer
let b:did_ftplugin = 1

let b:undo_ftplugin = "setl commentstring<"

setlocal commentstring=#\ %s