mcs-ng-material/resources/lib/angular-material/modules/js/sidenav/sidenav-default-theme.css

MCS NG-Meterial is based on mcs-web.

/*!
 * AngularJS Material Design
 * https://github.com/angular/material
 * @license MIT
 * v1.1.6
 */
md-sidenav.md-THEME_NAME-theme, md-sidenav.md-THEME_NAME-theme md-content {
  background-color: '{{background-hue-1}}'; }