patch 8.2.0299: Vim9: ISN_STORE with argument not tested Commit: https://github.com/vim/vim/commit/8ed04587d3cd53e29be20fde9c36e619ea7da4dc Author: Bram Moolenaar <Bram@vim.org> Date: Sat Feb 22 19:07:28 2020 +0100 patch 8.2.0299: Vim9: ISN_STORE with argument not tested Problem: Vim9: ISN_STORE with argument not tested. Some cases in tv2bool() not tested. Solution: Add tests. Add test_unknown() and test_void().

" 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