patch 8.0.0749: some unicode digraphs are hard to remember commit https://github.com/vim/vim/commit/816e7660e1efb918ad85b5c78d21b957d1bcad17 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 22 20:42:04 2017 +0200 patch 8.0.0749: some unicode digraphs are hard to remember Problem: Some unicode digraphs are hard to remember. Solution: Add alternatives with a backtick. (Chris Harding, closes https://github.com/vim/vim/issues/1861)

" Simplistic way to make spaces and Tabs visible

" This can be added to an already active syntax.

syn match Space " "
syn match Tab "\t"
if &background == "dark"
  hi def Space ctermbg=darkred guibg=#500000
  hi def Tab ctermbg=darkgreen guibg=#003000
else
  hi def Space ctermbg=lightred guibg=#ffd0d0
  hi def Tab ctermbg=lightgreen guibg=#d0ffd0
endif