diff --git a/Admin/Routes/Web/Backend.php b/Admin/Routes/Web/Backend.php
index aa2a573..950895f 100644
--- a/Admin/Routes/Web/Backend.php
+++ b/Admin/Routes/Web/Backend.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 use Modules\Monitoring\Controller\BackendController;
 use Modules\Monitoring\Models\PermissionState;
diff --git a/Theme/Backend/Lang/Navigation.en.lang.php b/Theme/Backend/Lang/Navigation.en.lang.php
index e413d54..c59c10a 100644
--- a/Theme/Backend/Lang/Navigation.en.lang.php
+++ b/Theme/Backend/Lang/Navigation.en.lang.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/Lang/api.en.lang.php b/Theme/Backend/Lang/api.en.lang.php
index 12ac5fd..52a9f4b 100644
--- a/Theme/Backend/Lang/api.en.lang.php
+++ b/Theme/Backend/Lang/api.en.lang.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/Lang/en.lang.php b/Theme/Backend/Lang/en.lang.php
index 851a53e..0b3b5e9 100644
--- a/Theme/Backend/Lang/en.lang.php
+++ b/Theme/Backend/Lang/en.lang.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/monitoring-dashboard.tpl.php b/Theme/Backend/monitoring-dashboard.tpl.php
index f381b4c..ebe4bb4 100644
--- a/Theme/Backend/monitoring-dashboard.tpl.php
+++ b/Theme/Backend/monitoring-dashboard.tpl.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/monitoring-logs-single.tpl.php b/Theme/Backend/monitoring-logs-single.tpl.php
index d24e6f9..6193b44 100644
--- a/Theme/Backend/monitoring-logs-single.tpl.php
+++ b/Theme/Backend/monitoring-logs-single.tpl.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
@@ -25,7 +25,7 @@ $details = '* Uri: `' . \trim($log['path']) . "`\n"
     . '* Line: `' . \trim($log['line']) . "`\n"
     . '* Version: `' . \trim($log['version']) . "`\n"
     . '* OS: `' . \trim($log['os']) . "`\n\n"
-    . "Backtrace: \n\n```\n" . \json_encode($log['backtrace'], JSON_PRETTY_PRINT);
+    . "Backtrace: \n\n```\n" . \json_encode($log['backtrace'], \JSON_PRETTY_PRINT);
 
 echo $this->getData('nav')->render(); ?>
 
@@ -81,7 +81,7 @@ echo $this->getData('nav')->render(); ?>
                         <td colspan="3"><?= $this->getHtml('Backtrace') ?>
                     <tr>
                         <td colspan="3">
-                            <pre><?= $this->printHtml(\json_encode($log['backtrace'], JSON_PRETTY_PRINT)); ?></pre>
+                            <pre><?= $this->printHtml(\json_encode($log['backtrace'], \JSON_PRETTY_PRINT)); ?></pre>
                     <tr>
                         <td colspan="3" style="padding-top: 10px"><a class="button" target="_blank"
                             href="https://gitreports.com/issue/Orange-Management/Orange-Management/?name=Guest&issue_title=<?= $this->printHtml(\urlencode($log['message'])); ?>&details=<?= $this->printHtml(\urlencode($details)); ?>"><?= $this->getHtml('Report') ?></a>
diff --git a/Theme/Backend/monitoring-logs.tpl.php b/Theme/Backend/monitoring-logs.tpl.php
index d091113..033d502 100644
--- a/Theme/Backend/monitoring-logs.tpl.php
+++ b/Theme/Backend/monitoring-logs.tpl.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 /**
  * Orange Management
  *
diff --git a/Theme/Backend/monitoring-security-file-list.tpl.php b/Theme/Backend/monitoring-security-file-list.tpl.php
index 6639f1b..e3e5508 100644
--- a/Theme/Backend/monitoring-security-file-list.tpl.php
+++ b/Theme/Backend/monitoring-security-file-list.tpl.php
@@ -1,26 +1,26 @@
-<?php
-/**
- * Orange Management
- *
- * PHP Version 7.2
- *
- * @package    TBD
- * @copyright  Dennis Eichhorn
- * @license    OMS License 1.0
- * @version    1.0.0
- * @link       http://website.orange-management.de
- */
-
-use phpOMS\Message\Http\Request;
-use phpOMS\Message\Http\Rest;
-use phpOMS\Uri\Http;
-
-/**
- * @var \phpOMS\Views\View $this
- */
-
-$files = \phpOMS\System\File\Local\Directory(__DIR__ . '/../../../../phpOMS', '^.+\.php$');
-
+<?php declare(strict_types=1);
+/**
+ * Orange Management
+ *
+ * PHP Version 7.2
+ *
+ * @package    TBD
+ * @copyright  Dennis Eichhorn
+ * @license    OMS License 1.0
+ * @version    1.0.0
+ * @link       http://website.orange-management.de
+ */
+
+use phpOMS\Message\Http\Request;
+use phpOMS\Message\Http\Rest;
+use phpOMS\Uri\Http;
+
+/**
+ * @var \phpOMS\Views\View $this
+ */
+
+$files = \phpOMS\System\File\Local\Directory(__DIR__ . '/../../../../phpOMS', '^.+\.php$');
+
 echo $this->getData('nav')->render(); ?>
 
 <div class="row">
diff --git a/Theme/Backend/monitoring-security.tpl.php b/Theme/Backend/monitoring-security.tpl.php
index 701ad54..4e4f8ed 100644
--- a/Theme/Backend/monitoring-security.tpl.php
+++ b/Theme/Backend/monitoring-security.tpl.php
@@ -1,23 +1,23 @@
-<?php
-/**
- * Orange Management
- *
- * PHP Version 7.2
- *
- * @package    TBD
- * @copyright  Dennis Eichhorn
- * @license    OMS License 1.0
- * @version    1.0.0
- * @link       http://website.orange-management.de
- */
-
-use phpOMS\Message\Http\Request;
-use phpOMS\Message\Http\Rest;
-use phpOMS\Security\PhpCode;
-use phpOMS\System\File\Local\Directory;
-use phpOMS\System\File\Local\File;
-use phpOMS\Uri\Http;
-
+<?php declare(strict_types=1);
+/**
+ * Orange Management
+ *
+ * PHP Version 7.2
+ *
+ * @package    TBD
+ * @copyright  Dennis Eichhorn
+ * @license    OMS License 1.0
+ * @version    1.0.0
+ * @link       http://website.orange-management.de
+ */
+
+use phpOMS\Message\Http\Request;
+use phpOMS\Message\Http\Rest;
+use phpOMS\Security\PhpCode;
+use phpOMS\System\File\Local\Directory;
+use phpOMS\System\File\Local\File;
+use phpOMS\Uri\Http;
+
 echo $this->getData('nav')->render(); ?>
 
 <div class="row">
@@ -49,8 +49,8 @@ echo $this->getData('nav')->render(); ?>
                     <td><?= $this->getHtml('Modified') ?>
                     <td><?= $this->getHtml('Integrity') ?>
                 <tbody>
-                        <?php
-                        $files = Directory::listByExtension(__DIR__ . '/../../../../phpOMS/', 'php', 'tests(\/|\\\)');
+                        <?php
+                        $files = Directory::listByExtension(__DIR__ . '/../../../../phpOMS/', 'php', 'tests(\/|\\\)');
                         foreach ($files as $file) : $content = \file_get_contents(__DIR__ . '/../../../../phpOMS/' . $file); ?>
                         <tr>
                             <td>
@@ -59,17 +59,17 @@ echo $this->getData('nav')->render(); ?>
                             <td><?= PhpCode::hasDeprecatedFunction($content) ? $this->getHtml('NG') : $this->getHtml('OK'); ?>
                             <td><?= File::changed(__DIR__ . '/../../../../phpOMS/' . $file)->format('Y-m-d'); ?>
                             <td>
-                                <?= \phpOMS\Security\PhpCode::validateStringIntegrity(
-                                    $content,
-                                    Rest::request(
-                                        new Request(
-                                            new Http('https://raw.githubusercontent.com/Orange-Management/phpOMS/develop/' . $file)
-                                        )
-                                    )
+                                <?= \phpOMS\Security\PhpCode::validateStringIntegrity(
+                                    $content,
+                                    Rest::request(
+                                        new Request(
+                                            new Http('https://raw.githubusercontent.com/Orange-Management/phpOMS/develop/' . $file)
+                                        )
+                                    )
                                 ) ? $this->getHtml('OK') : $this->getHtml('NG'); ?>
                         <?php endforeach; ?>
-                        <?php
-                        $files = Directory::listByExtension(__DIR__ . '/../../../../Model/', 'php', 'tests(\/|\\\)');
+                        <?php
+                        $files = Directory::listByExtension(__DIR__ . '/../../../../Model/', 'php', 'tests(\/|\\\)');
                         foreach ($files as $file) : $content = \file_get_contents(__DIR__ . '/../../../../Model/' . $file); ?>
                         <tr>
                             <td>
@@ -78,17 +78,17 @@ echo $this->getData('nav')->render(); ?>
                             <td><?= PhpCode::hasDeprecatedFunction($content) ? $this->getHtml('NG') : $this->getHtml('OK'); ?>
                             <td><?= File::changed(__DIR__ . '/../../../../Model/' . $file)->format('Y-m-d'); ?>
                             <td>
-                                <?= \phpOMS\Security\PhpCode::validateStringIntegrity(
-                                    $content,
-                                    Rest::request(
-                                        new Request(
-                                            new Http('https://raw.githubusercontent.com/Orange-Management/Model/develop/' . $file)
-                                        )
-                                    )
+                                <?= \phpOMS\Security\PhpCode::validateStringIntegrity(
+                                    $content,
+                                    Rest::request(
+                                        new Request(
+                                            new Http('https://raw.githubusercontent.com/Orange-Management/Model/develop/' . $file)
+                                        )
+                                    )
                                 ) ? $this->getHtml('OK') : $this->getHtml('NG'); ?>
                         <?php endforeach; ?>
-                        <?php
-                        $files = Directory::listByExtension(__DIR__ . '/../../../../Modules/', 'php', 'tests(\/|\\\)');
+                        <?php
+                        $files = Directory::listByExtension(__DIR__ . '/../../../../Modules/', 'php', 'tests(\/|\\\)');
                         foreach ($files as $file) : $content = \file_get_contents(__DIR__ . '/../../../../Modules/' . $file); ?>
                         <tr>
                             <td>
@@ -97,13 +97,13 @@ echo $this->getData('nav')->render(); ?>
                             <td><?= PhpCode::hasDeprecatedFunction($content) ? $this->getHtml('NG') : $this->getHtml('OK'); ?>
                             <td><?= File::changed(__DIR__ . '/../../../../Modules/' . $file)->format('Y-m-d'); ?>
                             <td>
-                                <?= \phpOMS\Security\PhpCode::validateStringIntegrity(
-                                    $content,
-                                    Rest::request(
-                                        new Request(
-                                            new Http('https://raw.githubusercontent.com/Orange-Management/Modules/develop/' . $file)
-                                        )
-                                    )
+                                <?= \phpOMS\Security\PhpCode::validateStringIntegrity(
+                                    $content,
+                                    Rest::request(
+                                        new Request(
+                                            new Http('https://raw.githubusercontent.com/Orange-Management/Modules/develop/' . $file)
+                                        )
+                                    )
                                 ) ? $this->getHtml('OK') : $this->getHtml('NG'); ?>
                         <?php endforeach; ?>
             </table>