Relative path in lightline, changed it's color.

nvim/init.vim

@@ -5,6 +5,7 @@ Plug 'junegunn/fzf'
 Plug 'junegunn/fzf.vim'
 Plug 'tpope/vim-commentary'
 Plug 'itchyny/lightline.vim'
+Plug 'itchyny/vim-gitbranch'
 Plug 'airblade/vim-gitgutter'
 Plug 'hashivim/vim-terraform'
 Plug 'bitc/vim-bad-whitespace'
@@ -76,22 +77,33 @@ let g:gitgutter_sign_modified = '~'
 let g:Hexokinase_highlighters = [ 'backgroundfull' ]
 
 let g:lightline = {
-  \ 'colorscheme': 'ayu',
   \ 'active': {
   \   'left': [ [ 'mode', 'paste' ],
-  \             [ 'readonly', 'filename' ] ],
+  \             [ 'readonly', 'gitbranch', 'filename' ] ],
   \   'right': [ [ 'lineinfo' ],
   \              [ 'percent' ],
   \              [ 'filetype' ] ]
   \ },
   \ 'component_function': {
-  \   'readonly': 'LightLineReadonly'},
+  \   'readonly': 'LightLineReadonly',
+  \   'filename': 'LightLineFilename',
+  \   'gitbranch': 'gitbranch#name'
+  \ }
   \ }
 
 function! LightLineReadonly()
   return &readonly && &filetype !=# 'help' ? '' : ''
 endfunction
 
+function! LightLineFilename()
+  let root = fnamemodify(get(b:, 'gitbranch_path'), ':h:h')
+  let path = expand('%:p')
+  if path[:len(root)-1] ==# root
+    return path[len(root)+1:]
+  endif
+  return expand('%')
+endfunction
+
 if filereadable(glob('~/.local/config/init.vim'))
   source ~/.local/config/init.vim
 endif