[BUG] Lualine section separators background is weird

[ArtemChandragupta]

Field	Description
Plugin	Lualine
Nixpkgs	Unstable
Home Manager	Unstable

• [+] I have read the FAQ and my bug is not listed there.

Description

Then I try to reproduce bubbles lualine theme, glyphs on the edges of the line have weird background. This issue have some mentions on reddit and lualine github. They resolved it by

Link StatusLine and StatusLineNC highlight groups to Normal
:hi! link StatusLine Normal :hi! link StatusLineNC Normal

What is it and how can I do this in nixvim?

Minimal, Reproducible Example (MRE)

programs.nixvim.plugins = {
  lualine = {
    enable = true;
    sectionSeparators = {
      left  = "";
      right = "";
    };
    sections = {
      lualine_a = [
        {
          separator.left = "";
          separator.right = "";
          extraConfig.padding.right = 2;
          extraConfig.padding.left = 2;
        }
      ];
      lualine_z = [
        {
          separator.right = "";
          extraConfig.padding.left = 2;
          extraConfig.padding.right = 2;
        }
      ];
    };
  };

}

[Gaétan Lepage]

Hello, thanks for the detailed report.

What is it and how can I do this in nixvim?

This solution consists in linking highlight groups.
You can do so in nixvim by setting:

extraConfigVim = ''
  hi! link StatusLine Normal
  hi! link StatusLineNC Normal
'';

[ArtemChandragupta]

Working as expected!

[Gaétan Lepage]

Working as expected!

Great !