Add color def for FZF vim

pkgs/vim/default.nix

@@ -292,6 +292,23 @@ let
         autocmd User lsp_buffer_enabled call s:on_lsp_buffer_enabled()
       augroup END
 
+      " Customize fzf colors to match your color scheme
+      " - fzf#wrap translates this to a set of `--color` options
+      let g:fzf_colors =
+      \ { 'fg':      ['fg', 'Normal'],
+        \ 'bg':      ['bg', 'Normal'],
+        \ 'hl':      ['fg', 'Comment'],
+        \ 'fg+':     ['fg', 'CursorLine', 'CursorColumn', 'Normal'],
+        \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],
+        \ 'hl+':     ['fg', 'Statement'],
+        \ 'info':    ['fg', 'PreProc'],
+        \ 'border':  ['fg', 'Ignore'],
+        \ 'prompt':  ['fg', 'Conditional'],
+        \ 'pointer': ['fg', 'Exception'],
+        \ 'marker':  ['fg', 'Keyword'],
+        \ 'spinner': ['fg', 'Label'],
+        \ 'header':  ['fg', 'Comment'] }
+
       " Extra options
       ${extraOptions}
     '';