discourse/app/assets/javascripts/admin/templates/customize.js.handlebars

<div class='content-list span6'>
  <h3>{{i18n admin.customize.long_title}}</h3>
  <ul>
    {{#each model}}
    <li><a {{action selectStyle this}} {{bindAttr class="this.selected:active"}}>{{this.description}}</a></li>
    {{/each}}
  </ul>
  <button {{action newCustomization}} class='btn'>{{i18n admin.customize.new}}</button>
</div>


{{#if selectedItem}}
<div class='current-style'>
  <div class='admin-controls'>
    <ul class="nav nav-pills">
      <li {{bindAttr class="view.stylesheetActive:active"}}>
        <a {{action selectStylesheet href="true" target="view"}}>{{i18n admin.customize.css}}</a>
      </li>
      <li {{bindAttr class="view.headerActive:active"}}>
        <a {{action selectHeader href="true" target="view"}}>{{i18n admin.customize.header}}</a>
      </li>
    </ul>
  </div>

  {{#with selectedItem}}
    {{textField class="style-name" value=name}}
    {{#if view.headerActive}}
      {{aceEditor content=header mode="html"}}
    {{/if}}
    {{#if view.stylesheetActive}}
      {{aceEditor content=stylesheet mode="scss"}}
    {{/if}}
  {{/with}}
  <br>
  <div class='status-actions'>
    <span>{{i18n admin.customize.override_default}} {{view Ember.Checkbox checkedBinding="selectedItem.override_default_style"}}</span>
    <span>{{i18n admin.customize.enabled}}  {{view Ember.Checkbox checkedBinding="selectedItem.enabled"}}</span>
    {{#unless selectedItem.changed}}
    <a class='preview-link' {{bindAttr href="selectedItem.previewUrl"}} target='_blank'>{{i18n admin.customize.preview}}</a>
    |
    <a href="/?preview-style=" target='_blank'>{{i18n admin.customize.undo_preview}}</a><br>
    {{/unless}}
  </div>

  <div class='buttons'>
    <button {{action save}} {{bindAttr disabled="selectedItem.disableSave"}} class='btn'>{{i18n admin.customize.save}}</button>
    <span class='saving'>{{selectedItem.savingStatus}}</span>
    <a {{action destroy}} class='delete-link'>{{i18n admin.customize.delete}}</a>
  </div>

</div>
{{else}}
  <p class="about">{{i18n admin.customize.about}}</p>
{{/if}}
<div class='clearfix'></div>