patch 8.2.0431: some compilers don't support using e for Esc Commit: https://github.com/vim/vim/commit/56ba21a156c723d92a1929e2c500be7295efb0a8 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Mar 23 19:17:29 2020 +0100 patch 8.2.0431: some compilers don't support using \e for Esc Problem: Some compilers don't support using \e for Esc. (Yegappan Lakshmanan) Solution: use \033 instead.

" 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