patch 8.2.0736: some files not recognized as pamenv Commit: https://github.com/vim/vim/commit/aacc6afdb8cdeb2558e6942dcd65ca0079bec1ee Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 11 19:46:36 2020 +0200 patch 8.2.0736: some files not recognized as pamenv Problem: Some files not recognized as pamenv. Solution: Add pam_inv.conf. (closes https://github.com/vim/vim/issues/6065)

" 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