laravelEcomm/public/Dashboard/scss/common/dark/mixins/_breadcrumbs.scss

// Breadcrumb color variations
@mixin breadcrumb-inverse-variant($color) {
  background: lighten($color, 25%);
  border-color: $color;

  .breadcrumb-item {
    color: $color;

    &:before {
      color: inherit;
    }

    a {
      color: inherit;
    }
  }

  &.breadcrumb-custom {
    background: transparent;

    .breadcrumb-item {
      background: lighten($color, 25%);

      a {
        color: $color;
        border: none;

        &:before {
          border-left-color: lighten($color, 25%);
        }
      }

      span {
        color: $color;
      }

      &:last-child {
        background: transparent;
      }
    }
  }
}