saas-one/frontend/operation-web/ext/classic/theme-graphite/sass/var/window/Window.scss

$window-background-color: dynamic($body-background-color);
$window-body-background-color: dynamic($body-background-color);
$window-body-color: dynamic(contrast-color-by($body-background-color, 100));
$window-header-background-color: dynamic($base-color);
$window-header-hover-color: dynamic($base-color);