Note: this list is generated by looking for the string for this theme hook, so it may include some references that are not actually using this theme hook.

BackdropWebTestCase::handleForm in core/modules/simpletest/backdrop_web_test_case.php
Handle form input related to backdropPost(). Ensure that the specified fields exist and attempt to create POST data in the correct manner for the particular field type.
backdrop_class_list in core/includes/bootstrap.classes.inc
Lists all the classes used by Backdrop core.
backdrop_common_theme in core/includes/common.inc
Provides theme registration for themes across .inc files.
bartik_form_system_theme_settings_alter in core/modules/color/color.legacy.inc
Alters the theme settings form for Bartik legacy colors.
bartik_form_system_theme_settings_alter_submit in core/modules/color/color.legacy.inc
Submit handler for theme settings form.
color.inc in core/themes/bartik/color/color.inc
ColorTestCase::setUp in core/modules/color/tests/color.test
Sets up a Backdrop site for running functional and integration tests.
ColorTestCase::testBartikLegacy in core/modules/color/tests/color.test
Test the Bartik legacy color mode.
ColorTestCase::testUpdateCssFilesOnConfigSave in core/modules/color/tests/color.test
Test if the CSS files for a theme are updated when editing Configuration.
color_css_alter in core/modules/color/color.module
Implements hook_css_alter().
color_form_system_theme_settings_alter in core/modules/color/color.module
Implements hook_form_FORM_ID_alter().
color_get_color_element in core/modules/color/color.module
Creates the render array for a color element.
color_rebuild_settings in core/modules/color/color.module
Rebuild color scheme info.
color_save_configuration in core/modules/color/color.module
Generates the necessary CSS and images based on a color palette.
color_save_preview_settings in core/modules/color/color.module
Callback function to handle saving preview settings to the user's session.
color_scheme_form_submit in core/modules/color/color.module
Form submission handler for color_scheme_form().
color_scheme_form_validate in core/modules/color/color.module
Form validation handler for color_scheme_form().
color_update_1000 in core/modules/color/color.install
Convert color module settings to config files.
DashboardWelcomeBlock::getContent in core/modules/dashboard/includes/block.welcome.inc
Return the content of a block.
EntityFieldQueryTestCase::setUp in core/modules/entity/tests/entity_query.test
Sets up a Backdrop site for running functional and integration tests.
EntityFieldQueryTestCase::testEntityFieldQuery in core/modules/entity/tests/entity_query.test
Tests EntityFieldQuery.
EntityFieldQueryTestCase::testEntityFieldQueryMetaConditions in core/modules/entity/tests/entity_query.test
Tests field meta conditions.
FieldSqlStorageTestCase::testFieldSqlStorageMultipleConditionsDifferentColumns in core/modules/field/modules/field_sql_storage/tests/field_sql_storage.test
Test handling multiple conditions on multiple columns of one field.
FieldSqlStorageTestCase::testFieldSqlStorageMultipleConditionsDifferentColumnsMultipleLanguages in core/modules/field/modules/field_sql_storage/tests/field_sql_storage.test
Test handling multiple conditions on multiple columns of one field for multiple languages.
field_test_field_schema in core/modules/field/tests/field_test/field_test.install
Implements hook_field_schema().
FormExampleTestCase::testTutorials in modules/examples/form_example/form_example.test
Test each tutorial.
FormsTestCase::testColorValidation in core/modules/simpletest/tests/form.test
Tests validation of #type 'color' elements.
FormsTestCase::testColorValidation in core/modules/simpletest/tests/form.test
Tests validation of #type 'color' elements.
form_example_tutorial_8_page_two in modules/examples/form_example/form_example_tutorial.inc
Returns the form for the second page of form_example_tutorial_8().
form_example_tutorial_8_page_two_submit in modules/examples/form_example/form_example_tutorial.inc
The page 2 submit handler.
form_test_color in core/modules/simpletest/tests/form_test.module
Form constructor for testing #type 'color' elements.
form_test_color in core/modules/simpletest/tests/form_test.module
Form constructor for testing #type 'color' elements.
form_test_menu in core/modules/simpletest/tests/form_test.module
Implements hook_menu().
hook_ckeditor_plugins in core/modules/ckeditor/ckeditor.api.php
Provides a list of CKEditor plugins.
image_example_colorize_effect in modules/examples/image_example/image_example.module
Image effect callback; Colorize an image resource.
image_example_colorize_form in modules/examples/image_example/image_example.module
Form Builder; Configuration settings for colorize effect.
image_example_colorize_form in modules/examples/image_example/image_example.module
Form Builder; Configuration settings for colorize effect.
image_example_image_default_styles in modules/examples/image_example/image_example.module
Implements hook_image_default_styles().
image_example_image_styles_alter in modules/examples/image_example/image_example.module
Implements hook_image_styles_alter().
node_example_field_formatter_view in modules/examples/node_example/node_example.module
Implements hook_field_formatter_view().
node_example_theme in modules/examples/node_example/node_example.module
Implements hook_theme().
system_element_info in core/modules/system/system.module
Implements hook_element_info().
system_update_1049 in core/modules/system/system.install
Bartik theme settings update: Indicate whether legacy colors should be used.
theme-settings.php in core/themes/bartik/theme-settings.php
theme-settings.php in core/themes/basis/theme-settings.php
Theme settings file for Basis.
theme_example_node_color in modules/examples/node_example/node_example.module
A custom theme function.
theme_has_color_support in core/includes/theme.inc
Detect if a theme has support for the Color module.
theme_image_example_colorize_summary in modules/examples/image_example/image_example.module
Formats a summary of an image colorize effect.
_admin_bar_flush_cache in core/modules/admin_bar/admin_bar.inc
Flush all caches or a specific one.
_color_config_save in core/modules/color/color.module
Shared callback used by color_config_create() and hook_config_update().
_form_test_disabled_elements in core/modules/simpletest/tests/form_test.module
Build a form to test disabled elements.