chromium/chrome/browser/resources/ash/settings/os_languages_page/change_device_language_dialog.html

<style include="settings-shared iron-flex shared-style">
  #dialogBody {
    display: flex;
    flex-direction: column;
    height: 336px;
    overflow: auto;
    padding-inline-end: 0;
    padding-inline-start: 0;
  }

  cr-search-field {
    margin-bottom: 16px;
    margin-inline-end: var(--dialog-horizontal-padding);
    margin-inline-start: var(--dialog-horizontal-padding);
    margin-top: 16px;
  }

  iron-icon[icon='settings:check-circle'] {
    --iron-icon-fill-color: var(--cr-link-color);
    margin-inline-end: 26px;
  }

  iron-list > div:not(.selected):hover {
    background-color: var(--cros-menu-item-bg-color-focus);
  }

  [scrollable] iron-list > :not(.no-outline):focus {
    background-color: var(--cros-menu-item-bg-color-focus);
  }

  [scrollable] iron-list > .selected:not(.no-outline):focus {
    background-color: transparent;
  }

  .list-item {
    color: var(--cros-text-color-primary);
    min-height: 36px;
  }

  .padded {
    padding-inline-end: var(--dialog-horizontal-padding);
    padding-inline-start: var(--dialog-horizontal-padding);
  }

  paper-ripple {
    color: var(--cros-menu-item-ripple-color);
  }
</style>

<cr-dialog id="dialog" close-text="$i18n{close}" show-on-attach>
  <div slot="title">$i18n{changeDeviceLanguageDialogTitle}</div>
  <div id="dialogBody" slot="body" scrollable>
    <localized-link class="padded"
        localized-string="[[i18nAdvanced(
            'changeDeviceLanguageDialogDescription')]]">
    </localized-link>
    <cr-search-field label="$i18n{searchLanguages}"
        id="search" on-search-changed="onSearchChanged_"
        clear-label="$i18n{clearSearch}" on-keydown="onKeydown_" autofocus>
    </cr-search-field>
    <iron-list scroll-target="[[$$('[slot=body]')]]"
        items="[[displayedLanguages_]]" selection-enabled
        selected-item="{{selectedLanguage_}}"
        hidden$="[[displayedLanguagesEmpty_]]">
      <template>
        <!-- |selected| is a property of iron-list -->
        <div class$="list-item [[getItemClass_(selected)]]"
            tabindex$="[[tabIndex]]"
            aria-label="[[getAriaLabelForItem_(item, selected)]]">
          <paper-ripple></paper-ripple>
          <div class="flex padded" aria-hidden="true">
            [[getDisplayText_(item)]]
          </div>
          <iron-icon icon="settings:check-circle" hidden="[[!selected]]">
          </iron-icon>
        </div>
      </template>
    </iron-list>
    <div id="no-search-results" class="centered-message"
        hidden$="[[!displayedLanguagesEmpty_]]">
      $i18n{noSearchResults}
    </div>
  </div>
  <div slot="button-container">
    <cr-button class="cancel-button" on-click="onCancelButtonClick_">
      $i18n{cancel}
    </cr-button>
    <cr-button class="action-button" on-click="onActionButtonClick_"
        disabled="[[disableActionButton_]]">
      $i18n{changeDeviceLanguageConfirmButtonLabel}
    </cr-button>
  </div>
</cr-dialog>