It seems like the new way of distributing packages in Package Control is via zipped packages named ".sublime-package" and put them in ".config/sublime-tex-3/Installed Packages"
That is at least how all my other packages (except Anaconda) have installed themselves.
I think the ".config/sublime-tex-3/Packages" directory is for ST packages that it needs internally.
It seems like the new way of distributing packages in Package Control is via zipped packages named ".sublime-package" and put them in ".config/sublime-tex-3/Installed Packages"
That is at least how all my other packages (except Anaconda) have installed themselves.
I think the ".config/sublime-tex-3/Packages" directory is for ST packages that it needs internally.