saas-one/frontend/operation-web/ext/classic/theme-aria/sass/var/menu/Menu.scss

$menu-background-color: dynamic(#414551);
$menu-text-color: dynamic(#fff);
$menu-border-color: dynamic(darken($panel-border-color, 15%));
$menu-item-active-background-color: dynamic($orange);
$menu-item-active-border-color: dynamic(darken($orange, 5));
$menu-separator-border-color: dynamic(#222233);
$menu-separator-background-color: dynamic(#666666);

$menu-scroller-opacity: dynamic(1);
$menu-scroller-opacity-over: dynamic(.8);
$menu-scroller-opacity-pressed: dynamic(.6);