feature request: documentation treesitter syntax highlight like vim.lsp.buf.signature_help() in nvim 0.10

[wenjinnn]

FAQ

• I have checked the FAQ and it didn't resolve my problem.

Announcement

• I have checked Breaking change announcement.

Minimal reproducible full config

None, no need for this issue.

Description

Since nvim 0.10 released, the signature_help floating window got syntax highlight powered by treesitter, like this:

and cmp documentation highlight looks like:

I guess the red bracket in documentation window is related on this issue, which is fixed at nvim 0.10
Maybe cmp could highlight documentation window like vim.lsp.buf.signature_help()?
And I think noice.nvim is already do some hack that we can reference to:
https://github.com/folke/noice.nvim/blob/9f6f6ba74f8bfbf7e43d6302cf86b070362f6203/lua/noice/lsp/override.lua#L12-L34

Steps to reproduce

Select some lsp completion item to make cmp show documentation window

Expected behavior

Syntax highlight like vim.lsp.buf.signature_help()

Actual behavior

documentation window only have basic highlight

Additional context

No response