discourse/app/assets/javascripts/admin/addon/templates/modal/admin-reseed.hbs

<DModalBody @title="admin.reseed.modal.title" @subtitle="admin.reseed.modal.subtitle" @class="reseed-modal">
  <ConditionalLoadingSpinner @condition={{loading}}>
    {{#if categories}}
      <fieldset>
        <legend class="options-group-title">{{i18n "admin.reseed.modal.categories"}}</legend>

        {{#each categories as |category|}}
          <label>
            <Input class="option" @type="checkbox" @checked={{category.selected}} />
            <span>{{category.name}}</span>
          </label>
        {{/each}}
      </fieldset>
    {{/if}}

    <br>

    {{#if topics}}
      <fieldset>
        <legend class="options-group-title">{{i18n "admin.reseed.modal.topics"}}</legend>

        {{#each topics as |topic|}}
          <label>
            <Input class="option" @type="checkbox" @checked={{topic.selected}} />
            <span>{{topic.name}}</span>
          </label>
        {{/each}}
      </fieldset>
    {{/if}}
  </ConditionalLoadingSpinner>
</DModalBody>

<div class="modal-footer">
  <ConditionalLoadingSpinner @condition={{reseeding}} @size="small" />
  <DButton @action={{action "reseed"}} @class="btn-danger" @label="admin.reseed.modal.replace" @disabled={{reseeding}} />

  {{#unless reseeding}}
    <DModalCancel @close={{route-action "closeModal"}} />
  {{/unless}}
</div>