mcs-ng-material/resources/lib/angular-material/modules/js/toast/toast-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-toast.md-THEME_NAME-theme .md-toast-content {
  background-color: #323232;
  color: '{{background-50}}'; }
  md-toast.md-THEME_NAME-theme .md-toast-content .md-button {
    color: '{{background-50}}'; }
    md-toast.md-THEME_NAME-theme .md-toast-content .md-button.md-highlight {
      color: '{{accent-color}}'; }
      md-toast.md-THEME_NAME-theme .md-toast-content .md-button.md-highlight.md-primary {
        color: '{{primary-color}}'; }
      md-toast.md-THEME_NAME-theme .md-toast-content .md-button.md-highlight.md-warn {
        color: '{{warn-color}}'; }