BlockHero::form in core/modules/layout/includes/block.hero.inc

Builds the block's configuration form.

ckeditor5_ckeditor5_plugins in core/modules/ckeditor5/ckeditor5.module

Implements hook_ckeditor5_plugins().

ckeditor_get_settings in core/modules/ckeditor/ckeditor.module

Editor JS settings callback; Add CKEditor settings to the page for a format.

file_save_upload in core/includes/file.inc

Saves a file upload to a new location.

file_validate_is_image in core/includes/file.inc

Checks that the file is recognized by image_get_info() as an image.

filter_format_editor_image_form in core/modules/filter/filter.pages.inc

Form callback: Display a form for inserting/editing an image.

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

Implements hook_field_info().

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

Implements hook_field_widget_form().

image_gd_get_info in core/modules/system/image.gd.inc

Get details about an image.

standard_install in core/profiles/standard/standard.install

Implements hook_install().

UserPictureTestCase::testNoPicture in core/modules/user/tests/user.test