color of the vertical "warning" bar of pyright with dayfox

[LaurentClaessens]

I am using dayfox with nvim (Plug 'EdenEast/nightfox.nvim' in init.vim) and I am very satisfied appart of one detail.

When pyright sees an error, it puts >> in a vertical bar on the left of the line number column.
I want this bar to be fully colored when there is a warning somewhere in the file.

Here is a picture of the bar I am speaking of:

QUESTION : how to make the whole bar colored when there is an error/warning ?

[LaurentClaessens]

I found out how to make it. The secret was SignColumn and it was not related to Nightfox.

Here is my portion of init.vim corresponding:

function! ShowDiagnostics()
	let diagnostics = CocAction('diagnosticList')
	if !empty(diagnostics)
		highlight SignColumn guibg=#00ff56
	endif
endfunction

autocmd BufWritePost *.py call ShowDiagnostics()