Stay compatible with Neovim >= 0.10

Neovim 0.10 changes the default color scheme and others highlighting
groups different from Vim. Therefore, source the old vim colorscheme
before vim.one defines any highlights. See
<neovim/neovim#26378> for more information.

Author: IngoMeyer441

colors/one.vim

@@ -19,6 +19,9 @@ if exists("*<SID>X")
 endif
 
 hi clear
+if has('nvim-0.10')
+  runtime colors/vim.vim
+endif
 syntax reset
 if exists('g:colors_name')
   unlet g:colors_name