add lsp diagnostic virtual text colors

init.plugins.vim

@@ -5,6 +5,10 @@ if empty(glob('~/.config/nvim/autoload/plug.vim'))"
 endif
 call plug#begin('~/.config/nvim/bundle')
 
+" colorscheme (temporary)
+Plug 'https://github.com/marko-cerovac/material.nvim'
+let g:material_style = 'lighter'
+
 " evaluating
 "   #nvim-treesitter {{{
   " https://github.com/nvim-treesitter/nvim-treesitter
@@ -35,7 +39,7 @@ call plug#begin('~/.config/nvim/bundle')
 " Check :h nvim-treesitter-commands for a list of all available commands. It may be necessary to reload the buffer (e.g., via :e) after enabling a module interactively.
 
   "}}}
-"   #playground {{{
+"   #playground (temporary) {{{
   " https://github.com/nvim-treesitter/playground
   Plug 'nvim-treesitter/playground'
   "}}}