112 files declare their use of Element in Zircon Profile 8.0

AccountSettingsForm.php in core/modules/user/src/AccountSettingsForm.php

Contains \Drupal\user\AccountSettingsForm.

Actions.php in core/lib/Drupal/Core/Render/Element/Actions.php

Contains \Drupal\Core\Render\Element\Actions.

aggregator.theme.inc in core/modules/aggregator/aggregator.theme.inc

Preprocessors and theme functions of Aggregator module.

ArgumentPluginBase.php in core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php

Contains \Drupal\views\Plugin\views\argument\ArgumentPluginBase.

BlockViewBuilder.php in core/modules/block/src/BlockViewBuilder.php

Contains \Drupal\block\BlockViewBuilder.

book.module in core/modules/book/book.module

Allows users to create and organize related content in an outline.

BookAdminEditForm.php in core/modules/book/src/Form/BookAdminEditForm.php

Contains \Drupal\book\Form\BookAdminEditForm.

BubbleableMetadataTest.php in core/tests/Drupal/Tests/Core/Render/BubbleableMetadataTest.php

Contains \Drupal\Tests\Core\Render\BubbleableMetadataTest.

Button.php in core/lib/Drupal/Core/Render/Element/Button.php

Contains \Drupal\Core\Render\Element\Button.

CacheableMetadataTest.php in core/tests/Drupal/Tests/Core/Cache/CacheableMetadataTest.php

Contains \Drupal\Tests\Core\Cache\CacheableMetadataTest.

Checkbox.php in core/lib/Drupal/Core/Render/Element/Checkbox.php

Contains \Drupal\Core\Render\Element\Checkbox.

CKEditor.php in core/modules/ckeditor/src/Plugin/Editor/CKEditor.php

Contains \Drupal\ckeditor\Plugin\Editor\CKEditor.

Color.php in core/lib/Drupal/Core/Render/Element/Color.php

Contains \Drupal\Core\Render\Element\Color.

comment.module in core/modules/comment/comment.module

Enables users to comment on published content.

CommentItem.php in core/modules/comment/src/Plugin/Field/FieldType/CommentItem.php

Contains \Drupal\comment\Plugin\Field\FieldType\CommentItem.

CommentViewBuilder.php in core/modules/comment/src/CommentViewBuilder.php

Contains \Drupal\comment\CommentViewBuilder.

common.inc in core/includes/common.inc

Common functions that many Drupal modules will need to reference.

ContentTranslationHandler.php in core/modules/content_translation/src/ContentTranslationHandler.php

Contains \Drupal\content_translation\ContentTranslationHandler.

content_translation.admin.inc in core/modules/content_translation/content_translation.admin.inc

The content translation administration forms.

Date.php in core/lib/Drupal/Core/Render/Element/Date.php

Contains \Drupal\Core\Render\Element\Date.

Details.php in core/lib/Drupal/Core/Render/Element/Details.php

Contains \Drupal\Core\Render\Element\Details.

DynamicPageCacheSubscriber.php in core/modules/dynamic_page_cache/src/EventSubscriber/DynamicPageCacheSubscriber.php

Contains \Drupal\dynamic_page_cache\EventSubscriber\DynamicPageCacheSubscriber.

EarlyRenderingControllerTest.php in core/modules/system/src/Tests/Common/EarlyRenderingControllerTest.php

Contains \Drupal\system\Tests\Common\EarlyRenderingControllerTest.

editor.module in core/modules/editor/editor.module

Adds bindings for client-side "text editors" to text formats.

ElementTest.php in core/tests/Drupal/Tests/Core/Render/ElementTest.php

Contains \Drupal\Tests\Core\Render\ElementTest.

Email.php in core/lib/Drupal/Core/Render/Element/Email.php

Contains \Drupal\Core\Render\Element\Email.

entity.api.php in core/lib/Drupal/Core/Entity/entity.api.php

Hooks and documentation related to entities.

EntityDisplayFormBase.php in core/modules/field_ui/src/Form/EntityDisplayFormBase.php

Contains \Drupal\field_ui\Form\EntityDisplayFormBase.

EntityForm.php in core/lib/Drupal/Core/Entity/EntityForm.php

Contains \Drupal\Core\Entity\EntityForm.

EntityReferenceItem.php in core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php

Contains \Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem.

EntityViewBuilder.php in core/lib/Drupal/Core/Entity/EntityViewBuilder.php

Contains \Drupal\Core\Entity\EntityViewBuilder.

Field.php in core/modules/views/src/Plugin/views/field/Field.php

Contains \Drupal\views\Plugin\views\field\Field.

FieldConfigDeleteForm.php in core/modules/field_ui/src/Form/FieldConfigDeleteForm.php

Contains \Drupal\field_ui\Form\FieldConfigDeleteForm.

Fieldset.php in core/lib/Drupal/Core/Render/Element/Fieldset.php

Contains \Drupal\Core\Render\Element\Fieldset.

FieldUiTable.php in core/modules/field_ui/src/Element/FieldUiTable.php

Contains \Drupal\field_ui\Element\FieldUiTable.

field_ui.module in core/modules/field_ui/field_ui.module

Allows administrators to attach custom fields to fieldable types.

file.field.inc in core/modules/file/file.field.inc

Field module functionality for the File module.

file.module in core/modules/file/file.module

Defines a "managed_file" Form API field and a "file" field for Field module.

File.php in core/lib/Drupal/Core/Render/Element/File.php

Contains \Drupal\Core\Render\Element\File.

FileTransferAuthorizeForm.php in core/lib/Drupal/Core/FileTransfer/Form/FileTransferAuthorizeForm.php

Contains \Drupal\Core\FileTransfer\Form\FileTransferAuthorizeForm.

FileWidget.php in core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php

Contains \Drupal\file\Plugin\Field\FieldWidget\FileWidget.

filter.module in core/modules/filter/filter.module

Framework for handling the filtering of content.

FilterPluginBase.php in core/modules/views/src/Plugin/views/filter/FilterPluginBase.php

Contains \Drupal\views\Plugin\views\filter\FilterPluginBase.

form.inc in core/includes/form.inc

Functions for form and batch generation and processing.

Form.php in core/lib/Drupal/Core/Render/Element/Form.php

Contains \Drupal\Core\Render\Element\Form.

FormatterBase.php in core/lib/Drupal/Core/Field/FormatterBase.php

Contains \Drupal\Core\Field\FormatterBase.

FormBuilder.php in core/lib/Drupal/Core/Form/FormBuilder.php

Contains \Drupal\Core\Form\FormBuilder.

FormElementHelper.php in core/lib/Drupal/Core/Form/FormElementHelper.php

Contains \Drupal\Core\Form\FormElementHelper.

FormErrorHandler.php in core/modules/inline_form_errors/src/FormErrorHandler.php

Contains \Drupal\inline_form_errors\FormErrorHandler.

FormErrorHandler.php in core/lib/Drupal/Core/Form/FormErrorHandler.php

Contains \Drupal\Core\Form\FormErrorHandler.

FormHelper.php in core/lib/Drupal/Core/Form/FormHelper.php

Contains \Drupal\Core\Form\FormHelper.

FormTest.php in core/modules/system/src/Tests/Form/FormTest.php

Contains \Drupal\system\Tests\Form\FormTest.

FormValidator.php in core/lib/Drupal/Core/Form/FormValidator.php

Contains \Drupal\Core\Form\FormValidator.

HandlerBase.php in core/modules/views/src/Plugin/views/HandlerBase.php

Contains \Drupal\views\Plugin\views\HandlerBase.

Hidden.php in core/lib/Drupal/Core/Render/Element/Hidden.php

Contains \Drupal\Core\Render\Element\Hidden.

image.admin.inc in core/modules/image/image.admin.inc

Administration pages for image settings.

image.field.inc in core/modules/image/image.field.inc

Implement an image field, based on the file module's file field.

ImageButton.php in core/lib/Drupal/Core/Render/Element/ImageButton.php

Contains \Drupal\Core\Render\Element\ImageButton.

language.admin.inc in core/modules/language/language.admin.inc

Administration functions for language.module.

LanguageListBuilder.php in core/modules/language/src/LanguageListBuilder.php

Contains \Drupal\language\LanguageListBuilder.

locale.pages.inc in core/modules/locale/locale.pages.inc

Interface translation summary, editing and deletion user interfaces.

LocalTasksBlock.php in core/lib/Drupal/Core/Menu/Plugin/Block/LocalTasksBlock.php

Contains \Drupal\Core\Menu\Plugin\Block\LocalTasksBlock.

menu.inc in core/includes/menu.inc

API for the Drupal menu system.

MenuForm.php in core/modules/menu_ui/src/MenuForm.php

Contains \Drupal\menu_ui\MenuForm.

menu_ui.module in core/modules/menu_ui/menu_ui.module

Allows administrators to customize the site's navigation menus.

MessageViewBuilder.php in core/modules/contact/src/MessageViewBuilder.php

Contains \Drupal\contact\MessageViewBuilder.

ModulesListForm.php in core/modules/system/src/Form/ModulesListForm.php

Contains \Drupal\system\Form\ModulesListForm.

node.module in core/modules/node/node.module

The core module that allows content to be submitted to the site.

Number.php in core/lib/Drupal/Core/Render/Element/Number.php

Contains \Drupal\Core\Render\Element\Number.

Overview.php in core/modules/forum/src/Form/Overview.php

Contains \Drupal\forum\Form\Overview.

Pager.php in core/lib/Drupal/Core/Render/Element/Pager.php

Contains \Drupal\Core\Render\Element\Pager.

Password.php in core/lib/Drupal/Core/Render/Element/Password.php

Contains \Drupal\Core\Render\Element\Password.

PlaceholderGeneratorTest.php in core/tests/Drupal/Tests/Core/Render/PlaceholderGeneratorTest.php

Contains \Drupal\Tests\Core\Render\PlaceholderGeneratorTest.

PluginBase.php in core/modules/views/src/Plugin/views/PluginBase.php

Contains \Drupal\views\Plugin\views\PluginBase.

QuickEditFieldForm.php in core/modules/quickedit/src/Form/QuickEditFieldForm.php

Contains \Drupal\quickedit\Form\QuickEditFieldForm.

Radio.php in core/lib/Drupal/Core/Render/Element/Radio.php

Contains \Drupal\Core\Render\Element\Radio.

Range.php in core/lib/Drupal/Core/Render/Element/Range.php

Contains \Drupal\Core\Render\Element\Range.

RenderElement.php in core/lib/Drupal/Core/Render/Element/RenderElement.php

Contains \Drupal\Core\Render\Element\RenderElement.

RendererBubblingTest.php in core/tests/Drupal/Tests/Core/Render/RendererBubblingTest.php

Contains \Drupal\Tests\Core\Render\RendererBubblingTest.

RendererPlaceholdersTest.php in core/tests/Drupal/Tests/Core/Render/RendererPlaceholdersTest.php

Contains \Drupal\Tests\Core\Render\RendererPlaceholdersTest.

RendererRecursionTest.php in core/tests/Drupal/Tests/Core/Render/RendererRecursionTest.php

Contains \Drupal\Tests\Core\Render\RendererRecursionTest.

RendererTest.php in core/tests/Drupal/Tests/Core/Render/RendererTest.php

Contains \Drupal\Tests\Core\Render\RendererTest.

RendererTestBase.php in core/tests/Drupal/Tests/Core/Render/RendererTestBase.php

Contains \Drupal\Tests\Core\Render\RendererTestBase.

RenderTest.php in core/modules/system/src/Tests/Common/RenderTest.php

Contains \Drupal\system\Tests\Common\RenderTest.

Search.php in core/lib/Drupal/Core/Render/Element/Search.php

Contains \Drupal\Core\Render\Element\Search.

Select.php in core/lib/Drupal/Core/Render/Element/Select.php

Contains \Drupal\Core\Render\Element\Select.

SetCustomize.php in core/modules/shortcut/src/Form/SetCustomize.php

Contains \Drupal\shortcut\Form\SetCustomize.

simpletest.module in core/modules/simpletest/simpletest.module

Provides testing functionality.

StylePluginBase.php in core/modules/views/src/Plugin/views/style/StylePluginBase.php

Contains \Drupal\views\Plugin\views\style\StylePluginBase.

system.admin.inc in core/modules/system/system.admin.inc

Admin page callbacks for the system module.

SystemMenuBlockTest.php in core/modules/system/src/Tests/Block/SystemMenuBlockTest.php

Contains \Drupal\system\Tests\Block\SystemMenuBlockTest.

Table.php in core/lib/Drupal/Core/Render/Element/Table.php

Contains \Drupal\Core\Render\Element\Table.

Tableselect.php in core/lib/Drupal/Core/Render/Element/Tableselect.php

Contains \Drupal\Core\Render\Element\Tableselect.

taxonomy.module in core/modules/taxonomy/taxonomy.module

Enables the organization of content into categories.

Tel.php in core/lib/Drupal/Core/Render/Element/Tel.php

Contains \Drupal\Core\Render\Element\Tel.

Textarea.php in core/lib/Drupal/Core/Render/Element/Textarea.php

Contains \Drupal\Core\Render\Element\Textarea.

Textfield.php in core/lib/Drupal/Core/Render/Element/Textfield.php

Contains \Drupal\Core\Render\Element\Textfield.

TextFormat.php in core/modules/filter/src/Element/TextFormat.php

Contains \Drupal\filter\Element\TextFormat.

theme.inc in core/includes/theme.inc

The theme system, which controls the output of Drupal.

ThemeSettingsForm.php in core/modules/system/src/Form/ThemeSettingsForm.php

Contains \Drupal\system\Form\ThemeSettingsForm.

toolbar.module in core/modules/toolbar/toolbar.module

Administration toolbar for quick access to top level administration items.

Toolbar.php in core/modules/toolbar/src/Element/Toolbar.php

Contains \Drupal\toolbar\Element\Toolbar.

TranslateEditForm.php in core/modules/locale/src/Form/TranslateEditForm.php

Contains \Drupal\locale\Form\TranslateEditForm.

Url.php in core/lib/Drupal/Core/Render/Element/Url.php

Contains \Drupal\Core\Render\Element\Url.

user.module in core/modules/user/user.module

Enables the user registration and login system.

ValidationTest.php in core/modules/system/src/Tests/Form/ValidationTest.php

Contains \Drupal\system\Tests\Form\ValidationTest.

VerticalTabs.php in core/lib/Drupal/Core/Render/Element/VerticalTabs.php

Contains \Drupal\Core\Render\Element\VerticalTabs.

ViewEditForm.php in core/modules/views_ui/src/ViewEditForm.php

Contains \Drupal\views_ui\ViewEditForm.

views.module in core/modules/views/views.module

Primarily Drupal hooks and global API functions to manipulate views.

views_ui.theme.inc in core/modules/views_ui/views_ui.theme.inc

Preprocessors and theme functions for the Views UI.

WebTestBase.php in core/modules/simpletest/src/WebTestBase.php

Contains \Drupal\simpletest\WebTestBase.

WidgetBase.php in core/lib/Drupal/Core/Field/WidgetBase.php

Contains \Drupal\Core\Field\WidgetBase.