7 functions implement hook_form_system_theme_settings_alter()

Note: the procedural functions in this list are found by pattern matching, so the list may include some functions that are not actually implementations of this hook.

FormHooks::formSystemThemeSettingsAlter in core/themes/default_admin/src/Hook/FormHooks.php

Implement hook form_system_theme_settings_alter().

FormHooks::formSystemThemeSettingsAlter in core/themes/admin/src/Hook/FormHooks.php

Implement hook form_system_theme_settings_alter().

OliveroThemeSettingsHooks::formSystemThemeSettingsAlter in core/themes/olivero/src/Hook/OliveroThemeSettingsHooks.php

Implements hook_form_FORM_ID_alter().

olivero_form_system_theme_settings_alter in core/themes/olivero/theme-settings.php

Implements hook_form_FORM_ID_alter() for system_theme_settings.

TestThemeThemeHooks::formSystemThemeSettingsAlter in core/modules/system/tests/themes/test_theme_theme/src/Hook/TestThemeThemeHooks.php

Implements hook_form_system_theme_settings_alter().

test_theme_settings_form_system_theme_settings_alter in core/modules/system/tests/themes/test_theme_settings/theme-settings.php

Implements hook_form_system_theme_settings_alter().

test_theme_theme_form_system_theme_settings_alter in core/modules/system/tests/themes/test_theme_theme/test_theme_theme.theme

Implements hook_form_system_theme_settings_alter().