patch 8.2.0964: TextYankPost does not provide info about Visual selection Commit: https://github.com/vim/vim/commit/37d1673ce007c46ec2338f3236ae1b7b0324bd25 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jun 12 22:09:01 2020 +0200 patch 8.2.0964: TextYankPost does not provide info about Visual selection Problem: TextYankPost does not provide info about Visual selection. Solution: Add the 'visual' key in v:event. (closes https://github.com/vim/vim/issues/6249)

" 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