@mixin mdb-core-theme($theme) {
  $background: map-get($theme, background);
  $onBackground: map-get($theme, onBackground);

  #{if(&, '&', 'body')} {
    background-color: $background;
    color: $onBackground;
  }

  .bg-body {
    background-color: $background !important;
  }
}