patch 8.2.0363: some Normal mode commands not tested Commit: https://github.com/vim/vim/commit/f5f1e10d0d39890298cdf27f664d466c8872b87e Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 8 05:13:15 2020 +0100 patch 8.2.0363: some Normal mode commands not tested Problem: Some Normal mode commands not tested. Solution: Add more tests. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/5746)

" 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