patch 8.1.0328: inputlist() doesn't work with a timer commit https://github.com/vim/vim/commit/4cbdf155ca7bb6fbdab2d5acafae5fc712fca8b8 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 26 21:23:07 2018 +0200 patch 8.1.0328: inputlist() doesn't work with a timer Problem: inputlist() doesn't work with a timer. (Dominique Pelle) Solution: Don't redraw when cmdline_row is zero. (Hirohito Higashi, closes #3239)

" 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