patch 8.1.2273: wrong default when "pos" is changed with popup_atcursor() Commit: https://github.com/vim/vim/commit/4dd8fe0b4f49ec267640fb457672452825b11df0 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 9 15:33:31 2019 +0100 patch 8.1.2273: wrong default when "pos" is changed with popup_atcursor() Problem: Wrong default when "pos" is changed with popup_atcursor(). Solution: Adjust the default line and col when "pos" is not the default value. (#5151)

" 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