how do I properly overwrite highlighting styles?

[patrick99e99]

I put in my vimrc:

augroup custom_coc
  autocmd!
  autocmd VimEnter * hi CocErrorSign guifg=NONE guibg=NONE ctermfg=196 ctermbg=52
  ...
augroup END

and it works most of the time.. but every now and then, my color changes get reverted and I see the original styles... I was trying to do a google search about this, and it's AI response at the top said:

" In your coc-settings.json:
{
    "on_event": {
        "loaded": "CoCLoaded"
    }
}

as in, create a vim function and this supposedly will get fired after Coc.nvim finishes loading... Except, when I tried doing that, I get "Property on_event is not allowed. (json)" which tells me AI is lying again.

So, what is the proper way to defer setting style highlight overrides until Coc.nvim has finished loading?

[patrick99e99]

derp!

Some functions only work after the coc.nvim has been initialized.

To run a function on startup, use an autocmd like: >

	autocmd User CocNvimInit call CocAction('runCommand',
						\ 'tsserver.watchBuild')
<

Nevermind!!!

[chemzqm]

When change colorscheme users highlights would be cleared, use ColorScheme autocmd is recommended, see :h coc-highlights