discourse/app/assets/stylesheets/common/select-kit/admin-delete-flag-dropdown.scss

.select-kit {
  &.dropdown-select-box {
    width: auto;
    &.admin-delete-flag-dropdown {
      .dropdown-select-box-header .btn {
        background: $danger;
        color: white;
      }

      .select-kit-row[data-value="delete-spammer"] .texts .name,
      .select-kit-row[data-value="delete-spammer"] .icons .d-icon {
        color: $danger;
      }
    }
  }
}