CocList grep doesn't highlight word in preview

[ravisumit33]

As the heading suggest, in preview window grepped word is not highlighted. Other methods, such as CocList words properly highlight. Is this a bug or expected behaviour?

[fannheyward]

:CocList grep coc does highlighting.

[ravisumit33]

I was talking about highlighting in preview window not in list window. I still can't words getting highlighted when I do :CocList grep.
:CocList words is fine

In above screenshot you can see "defaultConfig" is searched word. It is highlighted everywhere in list window but it is not highlighted in preview window.

I am using Neovim on Mac with mostly COC extensions.

[ravisumit33]

Apart from the preview window, list window also shows different behaviours.

If i use any colorscheme(i am using gruvbox but tried several others also) list window is also not getting highlighted.

But if i use any default neovim colorschemes (e.g. desert) list window is nicely highlighted.

[chemzqm]

No such support, don't have time to, consider help by send PR if you need it.

[ravisumit33]

What about highlighting in preview window during CocList grep ? It should be there as other searches like CocList words have it.

[chemzqm]

It's much more complicated for grep, I don't have time for it.