patch 8.2.4230: MS-Windows: set_guifontwide() is included but won't work Commit: https://github.com/vim/vim/commit/94373c48e7e438e5b924b34ce820e9b2eb9f810c Author: K.Takata <kentkt@csc.jp> Date: Thu Jan 27 15:04:22 2022 +0000 patch 8.2.4230: MS-Windows: set_guifontwide() is included but won't work Problem: MS-Windows: set_guifontwide() is included but won't work. Solution: Include set_guifontwide() only for X11. (Ken Takata, closes https://github.com/vim/vim/issues/9640)

" 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