patch 9.0.1175: the set_ref_in_item() function is too long Commit: https://github.com/vim/vim/commit/ea125393af01ecaf75cee8e085a57f8143f3ae3e Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Wed Jan 11 11:46:17 2023 +0000 patch 9.0.1175: the set_ref_in_item() function is too long Problem: The set_ref_in_item() function is too long. Solution: Use a separate function for more complicated types. (Yegappan Lakshmanan, closes #11802)

" 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