I am reading about this post https://www.reddit.com/r/vim/comments/1sz1gb7/modern_vim_can_make_popup_dialogs_popup_menus/ about the pop up windows...

Hi, I am reading vim-help about popup.txt from 9.2 but I need an example more than that help.

I am not coder I just use vim for write text files. And I use a pop up plugin for show me a popup with this command :Help[me] leftbones/helpme-vim from github

but I'd like to see how to made a pop up by myself...

I need to see an exaple: what file, where that file saved, from zero every steep!

I see this post but I am not coder so it is something that I don't understand:

How to use

Just pass opacity to popup_create():

call popup_create('Hello, World!', #{
  \ line: 5,
  \ col: 10,
  \ opacity: 80,
  \ })

opacity ranges from 0 to 100. 100 is fully opaque, 0 is fully transparent.

Thank you and Regards!