:local {
  .clinical-lowlight-theme {
    --terra-dev-site-secondary-navigation-layout-side-nav-sidebar-background-color: #222a2e;
    --terra-dev-site-secondary-navigation-layout-side-nav-sidebar-box-shadow: inset -3px 0 0 -2px#181b1d, inset -4px 0 0 -2px #c7cacb;
  }
}