discourse/app/assets/javascripts/admin/addon/templates/customize-themes.hbs

{{#if (eq this.currentTab "themes")}}
  <DPageHeader
    @titleLabel={{i18n "admin.customize.theme.title"}}
    @descriptionLabel={{i18n "admin.customize.theme.description"}}
    @learnMoreUrl="https://meta.discourse.org/t/91966"
    @hideTabs={{true}}
  >
    <:breadcrumbs>
      <DBreadcrumbsItem @path="/admin" @label={{i18n "admin_title"}} />
      <DBreadcrumbsItem
        @path="/admin/customize/themes"
        @label={{i18n "admin.customize.theme.title"}}
      />
    </:breadcrumbs>
  </DPageHeader>
{{else}}
  <DPageHeader
    @titleLabel={{i18n "admin.customize.theme.components"}}
    @descriptionLabel={{i18n "admin.customize.theme.components_description"}}
    @hideTabs={{true}}
  >
    <:breadcrumbs>
      <DBreadcrumbsItem @path="/admin" @label={{i18n "admin_title"}} />
      <DBreadcrumbsItem
        @path="/admin/customize/components"
        @label={{i18n "admin.customize.theme.components"}}
      />
    </:breadcrumbs>
  </DPageHeader>
{{/if}}

<PluginOutlet @name="admin-customize-themes">
  {{#unless this.editingTheme}}
    <ThemesList
      @themes={{this.fullThemes}}
      @components={{this.childThemes}}
      @currentTab={{this.currentTab}}
      @installModal={{route-action "installModal"}}
    />
  {{/unless}}

  {{outlet}}
</PluginOutlet>