diff --git a/typo3/sysext/styleguide/Classes/Command/GeneratorCommand.php b/typo3/sysext/styleguide/Classes/Command/GeneratorCommand.php
index 5082d6265ffdaeb3fff5ca56a446905e33f9df35..48ef77a61bbc41aa6c75bf917ed908cec1e134dc 100644
--- a/typo3/sysext/styleguide/Classes/Command/GeneratorCommand.php
+++ b/typo3/sysext/styleguide/Classes/Command/GeneratorCommand.php
@@ -30,6 +30,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate TCA for Styleguide backend (create / delete)
+ *
+ * @internal
  */
 final class GeneratorCommand extends Command
 {
diff --git a/typo3/sysext/styleguide/Classes/Controller/BackendController.php b/typo3/sysext/styleguide/Classes/Controller/BackendController.php
index ccd9542c637c0d952f0d5ac6733c43f86b91d0e4..baf463e88d2872ff271466a9dbf68e182275d515 100644
--- a/typo3/sysext/styleguide/Classes/Controller/BackendController.php
+++ b/typo3/sysext/styleguide/Classes/Controller/BackendController.php
@@ -39,6 +39,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Styleguide main backend module in the help toolbar
+ *
+ * @internal
  */
 #[Controller]
 final class BackendController
diff --git a/typo3/sysext/styleguide/Classes/Exception.php b/typo3/sysext/styleguide/Classes/Exception.php
index cfb19e5c96cf55f32c663843358888b3523ae63e..4276fb163a8818bdf5bfd3dafcb376e76c852bd3 100644
--- a/typo3/sysext/styleguide/Classes/Exception.php
+++ b/typo3/sysext/styleguide/Classes/Exception.php
@@ -19,5 +19,7 @@ namespace TYPO3\CMS\Styleguide;
 
 /**
  * General styleguide exception
+ *
+ * @internal
  */
 class Exception extends \Exception {}
diff --git a/typo3/sysext/styleguide/Classes/Form/Element/User1Element.php b/typo3/sysext/styleguide/Classes/Form/Element/User1Element.php
index d2e16e8d9f90ce19894211fd6195cd5b29b9e039..cdcd6ec4ab47459f9af1f56171415a26ed2c6ab3 100644
--- a/typo3/sysext/styleguide/Classes/Form/Element/User1Element.php
+++ b/typo3/sysext/styleguide/Classes/Form/Element/User1Element.php
@@ -24,6 +24,8 @@ use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 /**
  * A user function rendering a type=user TCA type used in user_1
+ *
+ * @internal
  */
 final class User1Element extends AbstractFormElement
 {
diff --git a/typo3/sysext/styleguide/Classes/Service/KauderwelschService.php b/typo3/sysext/styleguide/Classes/Service/KauderwelschService.php
index 07d80114895be45d2ef13b74e384fad748062659..a076cfa4bfe0656dc4cb7156d60e53b43bc259ab 100644
--- a/typo3/sysext/styleguide/Classes/Service/KauderwelschService.php
+++ b/typo3/sysext/styleguide/Classes/Service/KauderwelschService.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\Service;
 
 /**
  * Get test strings
+ *
+ * @internal
  */
 final class KauderwelschService
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/AbstractGenerator.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/AbstractGenerator.php
index 51a71a11d64293151b71e5d068fe6cfa94637d10..e3f91a1f4d46798491c6f17ea8afe38c4914bcc7 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/AbstractGenerator.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/AbstractGenerator.php
@@ -32,6 +32,8 @@ use TYPO3\CMS\Core\Utility\MathUtility;
 
 /**
  * Manage a page tree with all test / demo styleguide data.
+ *
+ * @internal
  */
 abstract class AbstractGenerator
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/Exception.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/Exception.php
index 76188b57b51b548227cec5d4385f6a285c02c27f..0f994618aae0f7b584e55bcbd132e9b40d064b9d 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/Exception.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/Exception.php
@@ -19,5 +19,7 @@ namespace TYPO3\CMS\Styleguide\TcaDataGenerator;
 
 /**
  * TcaDataGenerator exception
+ *
+ * @internal
  */
 class Exception extends \TYPO3\CMS\Styleguide\Exception {}
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/AbstractFieldGenerator.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/AbstractFieldGenerator.php
index 689c99d81865823909fb6f25ddd5d338ffd79737..002bcbd5d07cdb5cc8c262b9c18d971e3afb9d80 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/AbstractFieldGenerator.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/AbstractFieldGenerator.php
@@ -22,6 +22,8 @@ use TYPO3\CMS\Styleguide\Service\KauderwelschService;
 
 /**
  * Implement some standard stuff
+ *
+ * @internal
  */
 abstract class AbstractFieldGenerator
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/ConfigDefault.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/ConfigDefault.php
index 3cbe147b9717651e313e589eefbdfe9dae58bbdc..872f1a2171affa67c8b91bfd1bdb2e35dc381a21 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/ConfigDefault.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/ConfigDefault.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Use "default" value if set in config
+ *
+ * @internal
  */
 final class ConfigDefault extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeCheck.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeCheck.php
index ab16219f94b0e9c957d536990262a60b60758078..a6988220050a1ce9e57c6e9098bb3e98ccc8d0cd 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeCheck.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeCheck.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=check fields
+ *
+ * @internal
  */
 final class TypeCheck extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeColor.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeColor.php
index c1ee484a073b2d1f5042c31ac164defbd20e24d6..5ecde78a6f13ad3beb946e65ae906bd8c5e7741d 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeColor.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeColor.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=color fields
+ *
+ * @internal
  */
 final class TypeColor extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetime.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetime.php
index 40c98b64ff4cd7cde2b3b7a854f52a480eed3562..3aa393917a5e98a4b8849e0ddc13166179a9f0b0 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetime.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetime.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=datetime fields
+ *
+ * @internal
  */
 final class TypeDatetime extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeDbTypeDatetime.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeDbTypeDatetime.php
index c4ad2362e3af5e5fe6fcf97ac6f2344e453f3a94..15580595173b6373c13ed0d748f149fb3dd114e9 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeDbTypeDatetime.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeDbTypeDatetime.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=datetime fields with dbType=datetime
+ *
+ * @internal
  */
 final class TypeDatetimeDbTypeDatetime extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDate.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDate.php
index 6fe235727a9d035989718a32e166d22892d9db8b..71c570ff3f22892f704e6fd0b6ea139625baad14 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDate.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDate.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=datetime fields with format=date
+ *
+ * @internal
  */
 final class TypeDatetimeFormatDate extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDateDbTypeDate.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDateDbTypeDate.php
index 754c91cf7c33ef0ded92b3365de4f6c90b1b4ad9..164269812e9fa97f0fcb94d892ba62a5c45dd67b 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDateDbTypeDate.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatDateDbTypeDate.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=datetime fields with format=date and dbType=date
+ *
+ * @internal
  */
 final class TypeDatetimeFormatDateDbTypeDate extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTime.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTime.php
index 22f81e06d9e2212ce7faf479207351ee75be28f1..7f56139a16901fc8500b55fd75419fb051f6486f 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTime.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTime.php
@@ -25,6 +25,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=datetime fields with format=time
+ *
+ * @internal
  */
 final class TypeDatetimeFormatTime extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTimesec.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTimesec.php
index d8c28eb4badf323d9160384efd7c8c06dd2393ee..429f6b2d202ac22e798dded0395131b170ba0186 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTimesec.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeFormatTimesec.php
@@ -25,6 +25,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=datetime fields with format=timesec
+ *
+ * @internal
  */
 final class TypeDatetimeFormatTimesec extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeRequiredFormatDate.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeRequiredFormatDate.php
index 65ae3240177d0284fb4070c9f686ec5895c130ea..92eb27c4f7d285ec22dd85d11118242ff82150d4 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeRequiredFormatDate.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeDatetimeRequiredFormatDate.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for mandatory type=datetime fields with format=date
+ *
+ * @internal
  */
 final class TypeDatetimeRequiredFormatDate extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeEmail.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeEmail.php
index 26cb3ec5f33c88300a9c9a9e618919dbc5a5467a..25d3ab62ce7ca9cf6ea2e52f8af5d77d5b486674 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeEmail.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeEmail.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=email fields
+ *
+ * @internal
  */
 final class TypeEmail extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFile.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFile.php
index 161e66021de7e8a60174e071a5417e17d20081aa..9c65c15a88b1a811f83e1a8ae0d9d82d44209372 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFile.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFile.php
@@ -25,6 +25,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=file fields
+ *
+ * @internal
  */
 final class TypeFile extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFlex.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFlex.php
index ddd6d0713554b6944e4f97958e58b6bb6722a443..23c86c5290c12bf66937cb0ee20cba34edc9ede7 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFlex.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFlex.php
@@ -25,6 +25,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\GeneratorNotFoundException;
 
 /**
  * Generate data for type=flex fields
+ *
+ * @internal
  */
 final class TypeFlex extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFolder.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFolder.php
index 83dc3f97615e5ec9211c17e61e4824bac05ae4f1..e155cdf492e6214c052a7af1563c71e239aaf9df 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFolder.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeFolder.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=folder fields
+ *
+ * @internal
  */
 final class TypeFolder extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsers.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsers.php
index c7f0936986c8d2629df51fa87cf461d7c5cda061..239cef9559fbf7a0d44768b8c875a23ef7456079 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsers.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsers.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=group fields
+ *
+ * @internal
  */
 final class TypeGroupAllowedBeUsers extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsersBeGroups.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsersBeGroups.php
index c3763ad4e481ceee4f0e4ae90fa1447cfeffa342..b8f4c92ef0e01da93479840c0ee7d4d9f8148ab1 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsersBeGroups.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedBeUsersBeGroups.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=group fields
+ *
+ * @internal
  */
 final class TypeGroupAllowedBeUsersBeGroups extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedPages.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedPages.php
index b789e94b5dc915a3526b7d314116e49fcf283bba..6d0913194d83ea61e01c1b6623735c4a78247d60 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedPages.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedPages.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=group fields
+ *
+ * @internal
  */
 final class TypeGroupAllowedPages extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedStaticdata.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedStaticdata.php
index d108f897cc6a03c3fe44a9db2c41e9ef3fdc0de2..07a9777969615b570ddff2917bd81691ad8700fd 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedStaticdata.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedStaticdata.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=group fields
+ *
+ * @internal
  */
 final class TypeGroupAllowedStaticdata extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedSysFiles.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedSysFiles.php
index 41aadd1ac45e36de8cb12a8d0bc619151fff559e..94ab698aec16322ef1e9c07e1346cf832110dcdd 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedSysFiles.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupAllowedSysFiles.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=group fields
+ *
+ * @internal
  */
 final class TypeGroupAllowedSysFiles extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupFal.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupFal.php
index 057783ef875deecad926f3afa8c1ec6143f40bdb..8226ca29b76a8cb968dd222041e95de644e3259d 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupFal.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeGroupFal.php
@@ -25,6 +25,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=group fields
+ *
+ * @internal
  */
 final class TypeGroupFal extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeImageManipulation.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeImageManipulation.php
index 9cac5454db151ee6aea293dff7de9ccf7cfc7a89..7bc9744f9720c5c5f76c0bece20188a404c57c40 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeImageManipulation.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeImageManipulation.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=none fields
+ *
+ * @internal
  */
 final class TypeImageManipulation extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInline1n.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInline1n.php
index 4dd0731fca23c89668888f0a3c29cdf265b3769b..6a7fcc4f51fdb4ad71b73fc5d84770a830e66109 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInline1n.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInline1n.php
@@ -24,6 +24,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordData;
 
 /**
  * Generate data for type=inline fields
+ *
+ * @internal
  */
 final class TypeInline1n extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineExpandsingle.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineExpandsingle.php
index 63da1cc86f7e71aa869fa97f1ab798aef10de42e..b6ca026ed495ecbba25adfc6076aecc332b8bd22 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineExpandsingle.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineExpandsingle.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordData;
  * Generate data for type=inline fields.
  * Special implementation for inline_1 of tx_styleguide_inline_expandsingle creates
  * multiple child rows.
+ *
+ * @internal
  */
 final class TypeInlineExpandsingle extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineFalSelectSingle12Foreign.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineFalSelectSingle12Foreign.php
index 627b7d4e5b599dfbc340bb3eeabfc9896ec3308b..d0b2f6082ebe61e7f1de41a08ba614433d5eed95 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineFalSelectSingle12Foreign.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineFalSelectSingle12Foreign.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 /**
  * Generate data for fal_1 field of
  * tx_styleguide_elements_select_single_12_foreign
+ *
+ * @internal
  */
 final class TypeInlineFalSelectSingle12Foreign extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineUsecombination.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineUsecombination.php
index 78ebd2a9757867980e5b474a83f6db98300192f3..2d2e48aee86d5a6fd2a28027b7ed7c567b12aa72 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineUsecombination.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInlineUsecombination.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordData;
  * Generate data for type=inline fields.
  * Special implementation for inline_1 of
  * tx_styleguide_inline_usecombination and tx_styleguide_inline_usecombinationbox
+ *
+ * @internal
  */
 final class TypeInlineUsecombination extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInput.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInput.php
index 4ad91a66d43974d047066fc7defa5c6eedee0fca..f9c73dc6ec9cb21d8a4248d323c7490d8ba0e8d8 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInput.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInput.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInput extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputDynamicTextWithRecordUid.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputDynamicTextWithRecordUid.php
index 77b5b629794a9f6689b6436712edc29175094945..1b33f2df7581cd3faddf0be6479282e352841ecb 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputDynamicTextWithRecordUid.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputDynamicTextWithRecordUid.php
@@ -22,6 +22,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 /**
  * Generate data for type=input fields
  * "lipsum 23" for some special children
+ *
+ * @internal
  */
 final class TypeInputDynamicTextWithRecordUid extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalAlphanum.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalAlphanum.php
index 899048a157725c5774c3c18cf2bb2ffd90ace80a..b5bea1aefbdd5078b1e50675ca018e50d95049c3 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalAlphanum.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalAlphanum.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputEvalAlphanum extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalIsIn.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalIsIn.php
index f6b7ba44fbff717a1661a031bf1e0c5a6c7fd623..3cafd253eb5d732886a3b95b92dcbc30c84598a2 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalIsIn.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalIsIn.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputEvalIsIn extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalMd5.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalMd5.php
index 5013509f00dc7456ff7b2f6b7beab6c427009d22..30d219c2a69bf5907fcb6e7c481d6266e1981d08 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalMd5.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalMd5.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputEvalMd5 extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalNum.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalNum.php
index 675afe7a1f38c5c0cd21c090eaaed226d1f51e72..03af8307cefb500ef12b3c691c7a4fd188b7785a 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalNum.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalNum.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputEvalNum extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalUpper.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalUpper.php
index 21dffd2b6e9cc22dc3cff6420c5ae24eaeaab331..4432d1d8be311e92db38e9da9372de7a558811ae 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalUpper.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalUpper.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputEvalUpper extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalYear.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalYear.php
index d33ea7822a194d3f97303e1df7a31241bbd0d6a5..a3df6c62995ec92685cfb7ddf1e260e96f4d3372 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalYear.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputEvalYear.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputEvalYear extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputForceL10nParent.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputForceL10nParent.php
index 91c2db8647653171694e030cedd4a5e18845336f..225a3e51b9bd16b144011234452ca3765c6cd612 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputForceL10nParent.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputForceL10nParent.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputForceL10nParent extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4.php
index e0668e45643a87975b5f1f013304f583e410df94..b311aa2d7c8d97f213f5e5005e75cb6ce1f4d9a7 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputMax4 extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4Min4.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4Min4.php
index bef177c8ed3747d192e19e78e8ea97b91c6c75c5..ddca2182949a68a7707ab74d34c604d10ec96e36 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4Min4.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputMax4Min4.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputMax4Min4 extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputWizardSelect.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputWizardSelect.php
index fcc00d92bc82c9ed78b6bf3239d2a381a6b5d9f3..f8b5f5fe99dc07a793e1a8bd33a559525aa8c6ae 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputWizardSelect.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeInputWizardSelect.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=input fields
+ *
+ * @internal
  */
 final class TypeInputWizardSelect extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeLink.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeLink.php
index 9a503d095abc61b7121bc2f6915cfdc45a32ba7f..01856f378a847df63a337f9852a5f6bc1f968f0c 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeLink.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeLink.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=link fields
+ *
+ * @internal
  */
 final class TypeLink extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNone.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNone.php
index d0ecfdc48ef88b61ff8988ca922e2755461ed8e2..84c1a39aecd5db4c6361df01189bff18178559ad 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNone.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNone.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=none fields
+ *
+ * @internal
  */
 final class TypeNone extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNoneFormatDateTime.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNoneFormatDateTime.php
index c15ebcd29c245d881fab2eb54f53516bc7e337cb..93a37222c74c6cbb15bb3994e39932e61c3a5816 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNoneFormatDateTime.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNoneFormatDateTime.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=none fields with format='datetime'
+ *
+ * @internal
  */
 final class TypeNoneFormatDateTime extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumber.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumber.php
index afef3f58e7fba4714a1e0f29aff0f83b70589d98..7b7f3a5236b271c540dded20a4c90c41fe90ffb5 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumber.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumber.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=number fields
+ *
+ * @internal
  */
 final class TypeNumber extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumberFormatDecimal.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumberFormatDecimal.php
index e48d90d98a6876df9618a83ada24f0676eceab37..167d7dfc56153afa8cef64825d66e7d85f5988a3 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumberFormatDecimal.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeNumberFormatDecimal.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=number fields with format=decimal
+ *
+ * @internal
  */
 final class TypeNumberFormatDecimal extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassthrough.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassthrough.php
index 19ebb245142cf9745082db6133b5799a3fb3c82d..67c089da39caf949a8ccd1a8156e9b7c5947b7f7 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassthrough.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassthrough.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=passthrough fields
+ *
+ * @internal
  */
 final class TypePassthrough extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassword.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassword.php
index 265eeeffca22719f0681ab56e8b9333542a26614..fdbccc39912a0d7d46fabc107ba61cb6595ec291 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassword.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePassword.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for hashed type=password fields
+ *
+ * @internal
  */
 final class TypePassword extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePasswordHashedFalse.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePasswordHashedFalse.php
index e549c9d5cfa6c6f5ccccc97016d1a70e828a2e1d..f3fcc2f149686f1fc0c64f834493ebcc4926125f 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePasswordHashedFalse.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypePasswordHashedFalse.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=password fields that should not be hashed.
+ *
+ * @internal
  */
 final class TypePasswordHashedFalse extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeRadio.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeRadio.php
index ffb08a70965ec9b8d91a302a443c620c249cd161..990ed02c42a55d477702bfa6bfd6d4addb7437d8 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeRadio.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeRadio.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=radio fields
+ *
+ * @internal
  */
 final class TypeRadio extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelect.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelect.php
index a044b7f706bb04db63ddf42479439ddd6ad51149..4c60000d8a58e88e0f96399e683be82094d4277c 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelect.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelect.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=select fields
+ *
+ * @internal
  */
 final class TypeSelect extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeMultipleForeignTableStaticData.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeMultipleForeignTableStaticData.php
index 1ecc49f2dbc15e9065dd64a00437682c7dd959c1..c705672bac208ac61ef2095f7597b5e4a7c44942 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeMultipleForeignTableStaticData.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeMultipleForeignTableStaticData.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=select fields
+ *
+ * @internal
  */
 final class TypeSelectRenderTypeMultipleForeignTableStaticData extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSelectTree.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSelectTree.php
index 7e5abef6203eb88b53a542444fc45d8a3906d548..02596844cbb8273894f2c4503fc0d1f58a61ce88 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSelectTree.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSelectTree.php
@@ -23,6 +23,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Generate data for type=select fields
+ *
+ * @internal
  */
 final class TypeSelectRenderTypeSelectTree extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTable.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTable.php
index adb4f982cbab24e434ed652afa386784fe101ae3..03434b5ca5f8fdc1df4ce262a0fa075aaf09e9b9 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTable.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTable.php
@@ -25,6 +25,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordData;
 /**
  * Generate data for type=select fields.
  * Special field for select_single_12
+ *
+ * @internal
  */
 final class TypeSelectRenderTypeSingleForeignTable extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTableForType.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTableForType.php
index b0ff41b8ba9f11cb5daab21b455a3f15c765dd42..1e90daacb6e67c38eff6cdb46956ccfe82a42875 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTableForType.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeSelectRenderTypeSingleForeignTableForType.php
@@ -24,6 +24,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 /**
  * Generate data for type=select fields.
  * Special field for 'foreign_table' of table typeforeign
+ *
+ * @internal
  */
 final class TypeSelectRenderTypeSingleForeignTableForType extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeText.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeText.php
index 9d190657ba78b5a9a579c1c6e4ca948eb5b681ee..852fd1b0bbcaefcd15c5824c82c7a072776fbf7a 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeText.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeText.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=text fields
+ *
+ * @internal
  */
 final class TypeText extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextDefaultExtrasRichtext.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextDefaultExtrasRichtext.php
index d37418ecd1baf63b16cb1b47780458a046e7417f..bb9c4647f23dbab2ae240a69b43371fb15d33348 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextDefaultExtrasRichtext.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextDefaultExtrasRichtext.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=text fields
+ *
+ * @internal
  */
 final class TypeTextDefaultExtrasRichtext extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatDatetime.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatDatetime.php
index 2cb3a0d9511048aae9b85cc6b75a897bd0ac3839..c7b8049e0c9221a15eb446ec34f19ca1f7face12 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatDatetime.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatDatetime.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=text fields
+ *
+ * @internal
  */
 final class TypeTextFormatDatetime extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatT3editor.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatT3editor.php
index d28dbcb5a2f97888476b26e290cd2be9041b7ee5..a52d7b0bba2c1775c1564e8c3a88626a221a4900 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatT3editor.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextFormatT3editor.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=text fields
+ *
+ * @internal
  */
 final class TypeTextFormatT3editor extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextMax30.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextMax30.php
index f1f50570f7d470da9912b45ada7f36d1b9e50114..8cc13b19a24e0692bf2aaadad637cb05d95866a2 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextMax30.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextMax30.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=text fields
+ *
+ * @internal
  */
 final class TypeTextMax30 extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardSelect.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardSelect.php
index c0bdedfa0c423997db13925e6a58fadb63afaea0..b18f8c51fe0e6726f560c715aefe4b1ceb9a29da 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardSelect.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardSelect.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=text fields
+ *
+ * @internal
  */
 final class TypeTextWizardSelect extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardTable.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardTable.php
index dafeddbce955452f0814a33a06a409d42efffdc0..f5c74753f1f57e03840f4487a1d8f75c51039009 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardTable.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeTextWizardTable.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=text fields
+ *
+ * @internal
  */
 final class TypeTextWizardTable extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeUser.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeUser.php
index 4011f3109a7f6ef6050c787c744c052396682093..de19a8a96613c70c09cf50cb4de185d803d4eed4 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeUser.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGenerator/TypeUser.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\FieldGeneratorInterface;
 
 /**
  * Generate data for type=user fields
+ *
+ * @internal
  */
 final class TypeUser extends AbstractFieldGenerator implements FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorInterface.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorInterface.php
index abffcb469eb0c8bc5cc8ffb28d6bb315a4d85091..c334bbb2afc9ac3649ed6733d2fe09abce3692b0 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorInterface.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorInterface.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\TcaDataGenerator;
 
 /**
  * Interface for field value generators
+ *
+ * @internal
  */
 interface FieldGeneratorInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorResolver.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorResolver.php
index 4c98be9e74c6cc924af8b3bb56584425923fa891..975a2093cf7b27b12e0fecbca40313d3681a7625 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorResolver.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/FieldGeneratorResolver.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 /**
  * Find matching field generator class instance
+ *
+ * @internal
  */
 final class FieldGeneratorResolver
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/Generator.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/Generator.php
index f2b77694ebc1f181fe2f5f03b2a7d8dc834ba46f..a812fa39b018b77a9756f0353820c124001dbda8 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/Generator.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/Generator.php
@@ -27,6 +27,8 @@ use TYPO3\CMS\Core\Utility\StringUtility;
 
 /**
  * Manage a page tree with all test / demo styleguide data
+ *
+ * @internal
  */
 final class Generator extends AbstractGenerator
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorFrontend.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorFrontend.php
index 8a9607711513422e8e4772e7992b4d7488a76fbf..5df5486b0905c708bffad2f440e24b85ec754aac 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorFrontend.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorFrontend.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\Service\KauderwelschService;
 
 /**
  * Manage a page tree with all test / demo styleguide data
+ *
+ * @internal
  */
 final class GeneratorFrontend extends AbstractGenerator
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorNotFoundException.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorNotFoundException.php
index 7665b1bc287e6ea2deaecaa8162cf00909bafab2..a5ae2e62b94c269b0bba9e8d4ff3f1c025dea97d 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorNotFoundException.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/GeneratorNotFoundException.php
@@ -19,5 +19,7 @@ namespace TYPO3\CMS\Styleguide\TcaDataGenerator;
 
 /**
  * Exception thrown if FieldGenerator does not find a class
+ *
+ * @internal
  */
 final class GeneratorNotFoundException extends Exception {}
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordData.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordData.php
index ad38d4024f7d88277f14fc524c7a481932cd63f0..42ee7c95a115f5bba0f2d5e74c47e7e84e0fe4e7 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordData.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordData.php
@@ -21,6 +21,8 @@ use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 /**
  * Create data for a specific table and its child tables
+ *
+ * @internal
  */
 final class RecordData
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordFinder.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordFinder.php
index 4fc9d28f63e130bddea5b4705ed2e0d94cfa73a7..1c471c2feace0306c14cda3382e77d230abb04a3 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordFinder.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/RecordFinder.php
@@ -30,6 +30,8 @@ use TYPO3\CMS\Core\Utility\GeneralUtility;
 /**
  * Class contains helper methods to locate uids or pids of specific records
  * in the system.
+ *
+ * @internal
  */
 final class RecordFinder
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/AbstractTableHandler.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/AbstractTableHandler.php
index 0981729783eadc968c598b9fc24f392650be693a..9d7111e142f5cd1599e8dcfb28020228a030f8be 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/AbstractTableHandler.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/AbstractTableHandler.php
@@ -25,6 +25,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\RecordFinder;
 
 /**
  * Abstract table handler implements general methods
+ *
+ * @internal
  */
 abstract class AbstractTableHandler
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/General.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/General.php
index 2810a9ef81214fe2a9f4d70ff8fb85763eff30b1..e43af5ccd3c7a80385474abe2c3baf8b5d73901e 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/General.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/General.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\TableHandlerInterface;
 
 /**
  * General table handler
+ *
+ * @internal
  */
 final class General extends AbstractTableHandler implements TableHandlerInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMn.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMn.php
index 1dc15eb957dd5e6215417fca336170c4e4bee9b0..f20ce57fc9a1b78cb7a4d9701b6337766d5898d7 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMn.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMn.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\TableHandlerInterface;
 
 /**
  * Generate data for table tx_styleguide_inline_mn
+ *
+ * @internal
  */
 final class InlineMn extends AbstractTableHandler implements TableHandlerInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnGroup.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnGroup.php
index 012440aa2ba1ec9a3a0da5a1e2a8424eb9fb57ba..1d9dbff4cf41a35c67a11d54ce179e78243ff569 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnGroup.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnGroup.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\TableHandlerInterface;
 
 /**
  * Generate data for table tx_styleguide_inline_mngroup
+ *
+ * @internal
  */
 final class InlineMnGroup extends AbstractTableHandler implements TableHandlerInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetric.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetric.php
index da15be3b0c9611d5a7c4d9135956649e55594884..e1ac49f239f70d71027198d315eb66c51ac0b45c 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetric.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetric.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\TableHandlerInterface;
 
 /**
  * Generate data for table tx_styleguide_inline_mnsymmetric
+ *
+ * @internal
  */
 final class InlineMnSymmetric extends AbstractTableHandler implements TableHandlerInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetricGroup.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetricGroup.php
index aac8c7a032c93c46117c246b52cbcde26c5dfbf3..86059124063db85287acad9def20a48153aaa9c4 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetricGroup.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/InlineMnSymmetricGroup.php
@@ -26,6 +26,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\TableHandlerInterface;
 
 /**
  * Generate data for table tx_styleguide_inline_mnsymmetricgroup
+ *
+ * @internal
  */
 final class InlineMnSymmetricGroup extends AbstractTableHandler implements TableHandlerInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/StaticData.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/StaticData.php
index 5385e422af33c859a12cb1542e1842fa350aac54..5354a2a09166c989ebd1ee69d4a3eb590f7b3610 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/StaticData.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandler/StaticData.php
@@ -24,6 +24,8 @@ use TYPO3\CMS\Styleguide\TcaDataGenerator\TableHandlerInterface;
 
 /**
  * Generate data for table tx_styleguide_staticdata
+ *
+ * @internal
  */
 final class StaticData extends AbstractTableHandler implements TableHandlerInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandlerInterface.php b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandlerInterface.php
index afdf3de645c690e0ec41426640331cb927f5c347..61a9375de09d7b14679af13b59a4fbd5a55605ad 100644
--- a/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandlerInterface.php
+++ b/typo3/sysext/styleguide/Classes/TcaDataGenerator/TableHandlerInterface.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\TcaDataGenerator;
 
 /**
  * Interface for table handlers
+ *
+ * @internal
  */
 interface TableHandlerInterface
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/ExtensionConfiguration/User1.php b/typo3/sysext/styleguide/Classes/UserFunctions/ExtensionConfiguration/User1.php
index 4a987d4f9ef97dbc623af6742cd19abfe009e846..c77cc389fba9581ba77a634c769ea6d7a1757c7a 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/ExtensionConfiguration/User1.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/ExtensionConfiguration/User1.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\ExtensionConfiguration;
 
 /**
  * User function 1
+ *
+ * @internal
  */
 final class User1
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/DisplayConditionUserFunc.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/DisplayConditionUserFunc.php
index be9e3670d0ea86b93482fcd4ecfa53d925150f59..c07d74a5b97469a869845c2090ad42eaa48a66bc 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/DisplayConditionUserFunc.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/DisplayConditionUserFunc.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function to compare two fields
+ *
+ * @internal
  */
 final class DisplayConditionUserFunc
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SelectItemSorter.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SelectItemSorter.php
index f32523ff731e9449f997c8dc7666e2fc1330a3db..5ca4b10cc2c724fb78fb5a85ae8f46110b3b8e30 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SelectItemSorter.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SelectItemSorter.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function to sort ites
+ *
+ * @internal
  */
 final class SelectItemSorter
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SlugPrefix.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SlugPrefix.php
index cab74b161bf0dcb8750215a11dea8c28da97cf41..09be77515abc88c1e2604e03deceaed5e2724d14 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SlugPrefix.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/SlugPrefix.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function to compare two fields
+ *
+ * @internal
  */
 use TYPO3\CMS\Backend\Form\FormDataProvider\TcaSlug;
 
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeCheckbox8ItemsProcFunc.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeCheckbox8ItemsProcFunc.php
index d77fc355e8b0939674cad60492c818653b9f8c2e..6573f2811697a4984fb243105526942fcc6a2e37 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeCheckbox8ItemsProcFunc.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeCheckbox8ItemsProcFunc.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function used in checkbox_8
+ *
+ * @internal
  */
 final class TypeCheckbox8ItemsProcFunc
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeRadio5ItemsProcFunc.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeRadio5ItemsProcFunc.php
index b9f80bc179f0d2d2ce41a67bcb48a736ac9139af..1c3333c7e24d3fff1abc8eb57822f1a920c11668 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeRadio5ItemsProcFunc.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeRadio5ItemsProcFunc.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function used in radio_5
+ *
+ * @internal
  */
 final class TypeRadio5ItemsProcFunc
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect2ItemsProcFunc.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect2ItemsProcFunc.php
index f603f0d7207290fdad39644f6417e05ec45e19f2..5804ea4c281b99f2cd0bc512b39c2f6d471c8e6c 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect2ItemsProcFunc.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect2ItemsProcFunc.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function used in select_2
+ *
+ * @internal
  */
 final class TypeSelect2ItemsProcFunc
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect33ItemsProcFunc.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect33ItemsProcFunc.php
index 17218c8ed56870c52e640ef9c5b714587c2750fa..64ba046289cbf9d00666522ac2fdd35737b7e8e1 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect33ItemsProcFunc.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeSelect33ItemsProcFunc.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function used in select_33
+ *
+ * @internal
  */
 final class TypeSelect33ItemsProcFunc
 {
diff --git a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeUserPalette.php b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeUserPalette.php
index 117b5afa2c502a2ca2729c9f3e79556076ff5566..08acdc1946126d77a83ca2830f28ebcc5bc5df62 100644
--- a/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeUserPalette.php
+++ b/typo3/sysext/styleguide/Classes/UserFunctions/FormEngine/TypeUserPalette.php
@@ -19,6 +19,8 @@ namespace TYPO3\CMS\Styleguide\UserFunctions\FormEngine;
 
 /**
  * A user function rendering a type=user TCA type used in palette_1_1
+ *
+ * @internal
  */
 final class TypeUserPalette
 {
diff --git a/typo3/sysext/styleguide/Classes/ViewHelpers/CodeViewHelper.php b/typo3/sysext/styleguide/Classes/ViewHelpers/CodeViewHelper.php
index a02093be742060f5a0013ebb08c4c209313a0502..d599255e0f8ac7e357e42d1a1f2af218ce5509f4 100644
--- a/typo3/sysext/styleguide/Classes/ViewHelpers/CodeViewHelper.php
+++ b/typo3/sysext/styleguide/Classes/ViewHelpers/CodeViewHelper.php
@@ -21,6 +21,8 @@ use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
 
 /**
  * Render code snippets in a usable way
+ *
+ * @internal
  */
 final class CodeViewHelper extends AbstractViewHelper
 {