patch 8.1.2192: cannot easily fill the info popup asynchronously Commit: https://github.com/vim/vim/commit/dca7abe79cc4f0933473c3e4bcc75b46cc2c48fd Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 20 18:17:57 2019 +0200 patch 8.1.2192: cannot easily fill the info popup asynchronously Problem: Cannot easily fill the info popup asynchronously. Solution: Add the "popuphidden" value to 'completeopt'. (closes https://github.com/vim/vim/issues/4924)

" 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