[nvim] Change color theme to "one", enable spell

nvim-init.vim

@@ -149,12 +149,6 @@ inoremap <leader>aahl ⇔ | inoremap <leader>aalh ⇔
 nnoremap v <C-v>
 nnoremap <C-v> v
 
-" Color settings {{{2
-"   Decent color schemes: ron, delek, peachpuff, slate, murphy, elflord, desert
-source /usr/share/nvim/runtime/colors/ron.vim
-highlight LineNr ctermfg=08 ctermbg=None
-highlight link Whitespace Conceal
-
 " Adding modeline {{{2
 " Append modeline after last line in buffer.
 " Use substitute() instead of printf() to handle '%%s' modeline in LaTeX
@@ -167,9 +161,15 @@ function! AppendModeline()
 endfunction
 nnoremap <silent> <leader>ml :call AppendModeline()<CR>
 
+" Spell check {{{2
+" ================
+set spell
+set spelllang=en_us,nl
+set spellfile=$HOME/.local/share/nvim/spellfile.utf-8.add
 
-" Plugins {{{1
-" ============
+
+" Plug-ins {{{1
+" =============
 
 " Plug {{{2
 " ------------
@@ -177,6 +177,7 @@ call plug#begin('~/.config/nvim/plug')
 
 " Colors
 "Plug   'chriskempson/base16-vim'
+ Plug           'rakr/vim-one'
 
 " Language support
  Plug        'sheerun/vim-polyglot'                                             " color, indentation support for 100+ languages
@@ -238,6 +239,16 @@ call plug#begin('~/.config/nvim/plug')
 
 call plug#end()"
 
+" One {{{2
+" --------
+set termguicolors
+set cursorline
+let g:one_allow_italics = 1
+colorscheme one
+set background=dark
+hi Normal guibg=NONE
+hi SpellBad guibg=NONE
+hi link Whitespace Conceal
 
 " Haskell {{{2
 " ------------
@@ -472,7 +483,7 @@ let g:gutentags_cache_dir = '~/.cache/gutentag'
 " Airline {{{2
 " ------------
 let g:airline_powerline_fonts=1
-let g:airline_theme='minimalist'
+let g:airline_theme='one'
 let g:airline#extensions#ycm#enabled=1
 let g:airline#extensions#tabline#enabled=1
 let g:airline#extensions#ale#enabled=1