diff --git a/admin.php b/admin.php
index 50615262..e4710b91 100644
--- a/admin.php
+++ b/admin.php
@@ -16,6 +16,7 @@ use Grav\Plugin\Admin\AdminTwigExtension;
 use Grav\Plugin\Admin\Popularity;
 use Grav\Plugin\Admin\Themes;
 use Grav\Plugin\Admin\AdminController;
+use Grav\Plugin\Admin\Twig\AdminTwigExtension;
 use Grav\Plugin\Login\Login;
 use RocketTheme\Toolbox\Event\Event;
 use RocketTheme\Toolbox\Session\Session;
@@ -118,7 +119,7 @@ class AdminPlugin extends Plugin
         // Autoloader
         spl_autoload_register(function ($class) {
             if (Utils::startsWith($class, 'Grav\Plugin\Admin')) {
-                require_once __DIR__ .'/classes/' . strtolower(basename(str_replace("\\", "/", $class))) . '.php';
+                require_once __DIR__ .'/classes/' . strtolower(basename(str_replace("\\", '/', $class))) . '.php';
             }
         });
 
@@ -220,7 +221,7 @@ class AdminPlugin extends Plugin
                 $data = [];
                 $username = $form->value('username');
 
-                if ($form->value('password1') != $form->value('password2')) {
+                if ($form->value('password1') !== $form->value('password2')) {
                     $this->grav->fireEvent('onFormValidationError', new Event([
                             'form'    => $form,
                             'message' => $this->grav['language']->translate('PLUGIN_LOGIN.PASSWORDS_DO_NOT_MATCH')
@@ -245,11 +246,8 @@ class AdminPlugin extends Plugin
                     }
                 }
 
-                unset($data['password1']);
-                unset($data['password2']);
-
-                // Don't store the username: that is part of the filename
-                unset($data['username']);
+                // Don't store plain text password or username (part of the filename).
+                unset($data['password1'], $data['password2'], $data['username']);
 
                 // Extra lowercase to ensure file is saved lowercase
                 $username = strtolower($username);
@@ -313,7 +311,7 @@ class AdminPlugin extends Plugin
             }
 
             // Turn on Twig autoescaping
-            if (method_exists($this->grav['twig'], 'setAutoescape') && $this->grav['uri']->param('task') != 'processmarkdown') {
+            if (method_exists($this->grav['twig'], 'setAutoescape') && $this->grav['uri']->param('task') !== 'processmarkdown') {
                 $this->grav['twig']->setAutoescape(true);
             }
 
@@ -361,9 +359,9 @@ class AdminPlugin extends Plugin
         $this->session->expert = $this->session->expert ?: false;
 
         // set session variable if it's passed via the url
-        if ($this->uri->param('mode') == 'expert') {
+        if ($this->uri->param('mode') === 'expert') {
             $this->session->expert = true;
-        } elseif ($this->uri->param('mode') == 'normal') {
+        } elseif ($this->uri->param('mode') === 'normal') {
             $this->session->expert = false;
         }
 
@@ -391,7 +389,7 @@ class AdminPlugin extends Plugin
         $this->admin->task = $task = !empty($post['task']) ? $post['task'] : $this->uri->param('task');
         if ($task) {
             $this->initializeController($task, $post);
-        } elseif ($this->template == 'logs' && $this->route) {
+        } elseif ($this->template === 'logs' && $this->route) {
             // Display RAW error message.
             echo $this->admin->logEntry();
             exit();
@@ -637,7 +635,7 @@ class AdminPlugin extends Plugin
         }
 
         // Can't access path directly...
-        if ($path && $path != 'register') {
+        if ($path && $path !== 'register') {
             $array = explode('/', $path, 2);
             $this->template = array_shift($array);
             $this->route = array_shift($array);
@@ -768,8 +766,9 @@ class AdminPlugin extends Plugin
      */
     public function onTwigExtensions()
     {
-        require_once(__DIR__ . '/twig/AdminTwigExtension.php');
-        $this->grav['twig']->twig->addExtension(new AdminTwigExtension());
+        require_once __DIR__ . '/classes/Twig/AdminTwigExtension.php';
+
+        $this->grav['twig']->twig->addExtension(new AdminTwigExtension);
     }
 
     /**
@@ -779,23 +778,19 @@ class AdminPlugin extends Plugin
      */
     public function isAdminPath()
     {
-        if ($this->uri->route() == $this->base || substr($this->uri->route(), 0,
-                strlen($this->base) + 1) == $this->base . '/'
-        ) {
-            return true;
-        }
+        $route = $this->uri->route();
 
-        return false;
+        return $route === $this->base || 0 === strpos($route, $this->base . '/');
     }
 
     public function onAdminAfterSave(Event $event)
     {
         // Special case to redirect after changing the admin route to avoid 'breaking'
         $obj = $event['object'];
-        if (!is_null($event['object'])) {
+        if (null !== $obj) {
             $blueprint = $obj->blueprints()->getFilename();
 
-            if ($blueprint == 'admin/blueprints' && isset($obj->route) && $this->admin_route !== $obj->route) {
+            if ($blueprint === 'admin/blueprints' && isset($obj->route) && $this->admin_route !== $obj->route) {
                 $redirect = preg_replace('/^' . str_replace('/','\/',$this->admin_route) . '/',$obj->route,$this->uri->path());
                 $this->grav->redirect($redirect);
             }
@@ -827,7 +822,7 @@ class AdminPlugin extends Plugin
         // Clear flash objects for previously uploaded files
         // whenever the user switches page / reloads
         // ignoring any JSON / extension call
-        if (is_null($this->uri->extension()) && $this->admin->task !== 'save') {
+        if ($this->admin->task !== 'save' && empty($this->uri->extension())) {
             // Discard any previously uploaded files session.
             // and if there were any uploaded file, remove them from the filesystem
             if ($flash = $this->session->getFlashObject('files-upload')) {
@@ -884,7 +879,7 @@ class AdminPlugin extends Plugin
 
         // First filter by configuration
         $hideTypes = Grav::instance()['config']->get('plugins.admin.hide_page_types', []);
-        foreach ($hideTypes as $type) {
+        foreach ((array) $hideTypes as $type) {
             unset($types[$type]);
         }
 
@@ -908,7 +903,7 @@ class AdminPlugin extends Plugin
         $types = Pages::modularTypes();
 
         // First filter by configuration
-        $hideTypes = Grav::instance()['config']->get('plugins.admin.hide_modular_page_types', []);
+        $hideTypes = (array) Grav::instance()['config']->get('plugins.admin.hide_modular_page_types', []);
         foreach ($hideTypes as $type) {
             unset($types[$type]);
         }
diff --git a/classes/Twig/AdminTwigExtension.php b/classes/Twig/AdminTwigExtension.php
new file mode 100644
index 00000000..838c3e0d
--- /dev/null
+++ b/classes/Twig/AdminTwigExtension.php
@@ -0,0 +1,175 @@
+<?php
+namespace Grav\Plugin\Admin\Twig;
+
+use Grav\Common\Grav;
+use Grav\Common\Language\Language;
+use Symfony\Component\Yaml\Yaml;
+use Symfony\Component\Yaml\Parser;
+
+class AdminTwigExtension extends \Twig_Extension
+{
+    /**
+     * @var Grav
+     */
+    protected $grav;
+
+    /**
+     * @var Language $lang
+     */
+    protected $lang;
+
+    public function __construct()
+    {
+        $this->grav = Grav::instance();
+        $this->lang = $this->grav['user']->language;
+    }
+
+    public function getFilters()
+    {
+        return [
+            new \Twig_SimpleFilter('tu', [$this, 'tuFilter']),
+            new \Twig_SimpleFilter('toYaml', [$this, 'toYamlFilter']),
+            new \Twig_SimpleFilter('fromYaml', [$this, 'fromYamlFilter']),
+            new \Twig_SimpleFilter('adminNicetime', [$this, 'adminNicetimeFilter']),
+        ];
+    }
+
+    public function getFunctions()
+    {
+        return [
+            new \Twig_SimpleFunction('getPageUrl', [$this, 'getPageUrl'], ['needs_context' => true]),
+            new \Twig_SimpleFunction('clone', [$this, 'cloneFunc']),
+        ];
+    }
+
+    public function cloneFunc($obj)
+    {
+        return clone $obj;
+    }
+
+    public function getPageUrl($context, $page)
+    {
+        $page_route = trim($page->rawRoute(), '/');
+        $page_lang = $page->language();
+        $base_url = $context['base_url'];
+        $base_url_simple = $context['base_url_simple'];
+        $admin_lang = Grav::instance()['session']->admin_lang ?: 'en';
+
+        if ($page_lang && $page_lang != $admin_lang) {
+            $page_url = $base_url_simple . '/' . $page_lang . '/' . $context['admin_route'] . '/pages/' . $page_route;
+        } else {
+            $page_url = $base_url . '/pages/' . $page_route;
+        }
+
+        return $page_url;
+    }
+
+    public function tuFilter()
+    {
+        $args = func_get_args();
+        $numargs = count($args);
+        $lang = null;
+
+        if (($numargs === 3 && is_array($args[1])) || ($numargs === 2 && !is_array($args[1]))) {
+            $lang = array_pop($args);
+        } elseif ($numargs === 2 && is_array($args[1])) {
+            $subs = array_pop($args);
+            $args = array_merge($args, $subs);
+        }
+
+        return $this->grav['admin']->translate($args, $lang);
+    }
+
+    public function toYamlFilter($value, $inline = true)
+    {
+        return Yaml::dump($value, $inline);
+
+    }
+
+    public function fromYamlFilter($value)
+    {
+        $yaml = new Parser();
+        return $yaml->parse($value);
+    }
+
+    public function adminNicetimeFilter($date, $long_strings = true)
+    {
+        if (empty($date)) {
+            return $this->grav['admin']->translate('NICETIME.NO_DATE_PROVIDED', null, true);
+        }
+
+        if ($long_strings) {
+            $periods = [
+                'NICETIME.SECOND',
+                'NICETIME.MINUTE',
+                'NICETIME.HOUR',
+                'NICETIME.DAY',
+                'NICETIME.WEEK',
+                'NICETIME.MONTH',
+                'NICETIME.YEAR',
+                'NICETIME.DECADE'
+            ];
+        } else {
+            $periods = [
+                'NICETIME.SEC',
+                'NICETIME.MIN',
+                'NICETIME.HR',
+                'NICETIME.DAY',
+                'NICETIME.WK',
+                'NICETIME.MO',
+                'NICETIME.YR',
+                'NICETIME.DEC'
+            ];
+        }
+
+        $lengths = ['60', '60', '24', '7', '4.35', '12', '10'];
+
+        $now = time();
+
+        // check if unix timestamp
+        if ((string)(int)$date === (string)$date) {
+            $unix_date = $date;
+        } else {
+            $unix_date = strtotime($date);
+        }
+
+        // check validity of date
+        if (empty($unix_date)) {
+            return $this->grav['admin']->translate('NICETIME.BAD_DATE', null, true);
+        }
+
+        // is it future date or past date
+        if ($now > $unix_date) {
+            $difference = $now - $unix_date;
+            $tense      = $this->grav['admin']->translate('NICETIME.AGO', null, true);
+
+        } else {
+            $difference = $unix_date - $now;
+            $tense      = $this->grav['admin']->translate('NICETIME.FROM_NOW', null, true);
+        }
+
+        $len = count($lengths) - 1;
+        for ($j = 0; $difference >= $lengths[$j] && $j < $len; $j++) {
+            $difference /= $lengths[$j];
+        }
+
+        $difference = round($difference);
+
+        if ($difference !== 1) {
+            $periods[$j] .= '_PLURAL';
+        }
+
+        if ($this->grav['language']->getTranslation($this->grav['user']->language,
+            $periods[$j] . '_MORE_THAN_TWO')
+        ) {
+            if ($difference > 2) {
+                $periods[$j] .= '_MORE_THAN_TWO';
+            }
+        }
+
+        $periods[$j] = $this->grav['admin']->translate($periods[$j], null, true);
+
+        return "$difference $periods[$j] {$tense}";
+    }
+
+}
diff --git a/classes/admin.php b/classes/admin.php
index bcc9ac0e..04c7681f 100644
--- a/classes/admin.php
+++ b/classes/admin.php
@@ -9,6 +9,7 @@ use Grav\Common\GPM\Licenses;
 use Grav\Common\GPM\Response;
 use Grav\Common\Grav;
 use Grav\Common\Language\LanguageCodes;
+use Grav\Common\Page\Collection;
 use Grav\Common\Page\Page;
 use Grav\Common\Page\Pages;
 use Grav\Common\Plugins;
@@ -16,6 +17,7 @@ use Grav\Common\Themes;
 use Grav\Common\Uri;
 use Grav\Common\User\User;
 use Grav\Common\Utils;
+use Grav\Plugin\Admin\Twig\AdminTwigExtension;
 use Grav\Plugin\Admin\Utils as AdminUtils;
 use RocketTheme\Toolbox\Event\Event;
 use RocketTheme\Toolbox\File\File;
@@ -214,7 +216,7 @@ class Admin
     public static function tools()
     {
         $tools = [];
-        $event = Grav::instance()->fireEvent('onAdminTools', new Event(['tools' => &$tools]));
+        Grav::instance()->fireEvent('onAdminTools', new Event(['tools' => &$tools]));
 
         return $tools;
     }
@@ -227,7 +229,7 @@ class Admin
     public static function siteLanguages()
     {
         $languages = [];
-        $lang_data = Grav::instance()['config']->get('system.languages.supported', []);
+        $lang_data = (array) Grav::instance()['config']->get('system.languages.supported', []);
 
         foreach ($lang_data as $index => $lang) {
             $languages[$lang] = LanguageCodes::getNativeName($lang);
@@ -282,6 +284,7 @@ class Admin
         $page         = $pages->dispatch($route);
         $parent_route = null;
         if ($page) {
+            /** @var Page $parent */
             $parent       = $page->parent();
             $parent_route = $parent->rawRoute();
         }
@@ -351,6 +354,7 @@ class Admin
      * @param  array $post Additional form fields.
      *
      * @return bool
+     * @TODO LOGIN
      */
     public function authenticate($data, $post)
     {
@@ -365,7 +369,7 @@ class Admin
         }
 
 
-        if (!$this->user->authenticated && isset($data['username']) && isset($data['password'])) {
+        if (!$this->user->authenticated && isset($data['username'], $data['password'])) {
             // Perform RegEX check on submitted username to check for emails
             if (filter_var($data['username'], FILTER_VALIDATE_EMAIL)) {
                 $user = AdminUtils::findUserByEmail($data['username']);
@@ -420,6 +424,19 @@ class Admin
         return false;
     }
 
+    /**
+     * @return bool
+     * @todo LOGIN
+     */
+    public static function doAnyUsersExist()
+    {
+        // check for existence of a user account
+        $account_dir = $file_path = Grav::instance()['locator']->findResource('account://');
+        $user_check = glob($account_dir . '/*.yaml');
+
+        return $user_check ? true : false;
+    }
+
     /**
      * Add message into the session queue.
      *
@@ -490,9 +507,9 @@ class Admin
             if ($translation) {
                 if (count($args) >= 1) {
                     return vsprintf($translation, $args);
-                } else {
-                    return $translation;
                 }
+
+                return $translation;
             }
         }
 
@@ -502,7 +519,7 @@ class Admin
     /**
      * Checks user authorisation to the action.
      *
-     * @param  string $action
+     * @param  string|string[] $action
      *
      * @return bool
      */
@@ -734,9 +751,9 @@ class Admin
     {
         if (method_exists($this->grav['pages'], 'accessLevels')) {
             return $this->grav['pages']->accessLevels();
-        } else {
-            return [];
         }
+
+        return [];
     }
 
     public function license($package_slug)
@@ -773,7 +790,7 @@ class Admin
                         $dependency = $dependency['name'];
                     }
 
-                    if (!in_array($dependency, $dependencies)) {
+                    if (!in_array($dependency, $dependencies, true)) {
                         if (!in_array($dependency, ['admin', 'form', 'login', 'email', 'php'])) {
                             $dependencies[] = $dependency;
                         }
@@ -829,19 +846,16 @@ class Admin
 
         if ($local) {
             return $gpm->getInstalledPlugins();
-        } else {
-            $plugins = $gpm->getRepositoryPlugins();
-            if ($plugins) {
-                return $plugins->filter(function (
-                    $package,
-                    $slug
-                ) use ($gpm) {
-                    return !$gpm->isPluginInstalled($slug);
-                });
-            } else {
-                return [];
-            }
         }
+
+        $plugins = $gpm->getRepositoryPlugins();
+        if ($plugins) {
+            return $plugins->filter(function ($package, $slug) use ($gpm) {
+                return !$gpm->isPluginInstalled($slug);
+            });
+        }
+
+        return [];
     }
 
     /**
@@ -861,19 +875,16 @@ class Admin
 
         if ($local) {
             return $gpm->getInstalledThemes();
-        } else {
-            $themes = $gpm->getRepositoryThemes();
-            if ($themes) {
-                return $themes->filter(function (
-                    $package,
-                    $slug
-                ) use ($gpm) {
-                    return !$gpm->isThemeInstalled($slug);
-                });
-            } else {
-                return [];
-            }
         }
+
+        $themes = $gpm->getRepositoryThemes();
+        if ($themes) {
+            return $themes->filter(function ($package, $slug) use ($gpm) {
+                return !$gpm->isThemeInstalled($slug);
+            });
+        }
+
+        return [];
     }
 
     /**
@@ -928,9 +939,7 @@ class Admin
             return false;
         }
 
-        $dependencies = $this->gpm->getDependencies($packages);
-
-        return $dependencies;
+        return $this->gpm->getDependencies($packages);
     }
 
     /**
@@ -948,7 +957,7 @@ class Admin
 
         $latest = [];
 
-        if (is_null($pages->routes())) {
+        if (null === $pages->routes()) {
             return null;
         }
 
@@ -986,6 +995,7 @@ class Admin
     {
         $file    = File::instance($this->grav['locator']->findResource("log://{$this->route}.html"));
         $content = $file->content();
+        $file->free();
 
         return $content;
     }
@@ -1030,11 +1040,7 @@ class Admin
      */
     public function isTeamGrav($info)
     {
-        if (isset($info['author']['name']) && ($info['author']['name'] == 'Team Grav' || Utils::contains($info['author']['name'], 'Trilby Media'))) {
-            return true;
-        } else {
-            return false;
-        }
+        return isset($info['author']['name']) && ($info['author']['name'] === 'Team Grav' || Utils::contains($info['author']['name'], 'Trilby Media'));
     }
 
     /**
@@ -1046,11 +1052,7 @@ class Admin
      */
     public function isPremiumProduct($info)
     {
-        if (isset($info['premium'])) {
-            return true;
-        } else {
-            return false;
-        }
+        return isset($info['premium']);
     }
 
     /**
@@ -1069,9 +1071,9 @@ class Admin
             $pinfo = preg_replace('%^.*<body>(.*)</body>.*$%ms', '$1', $pinfo);
 
             return $pinfo;
-        } else {
-            return 'phpinfo() method is not available on this server.';
         }
+
+        return 'phpinfo() method is not available on this server.';
     }
 
     /**
@@ -1107,7 +1109,8 @@ class Admin
                     if ($this->validateDate($date, "$date_format $time_format")) {
                         $guess[$date] = "$date_format $time_format";
                         break 2;
-                    } elseif ($this->validateDate($date, "$time_format $date_format")) {
+                    }
+                    if ($this->validateDate($date, "$time_format $date_format")) {
                         $guess[$date] = "$time_format $date_format";
                         break 2;
                     }
@@ -1182,9 +1185,10 @@ class Admin
             'r' => 'llll ZZ',
             'U' => 'X'
         ];
-        $js_format        = "";
+        $js_format        = '';
         $escaping         = false;
-        for ($i = 0; $i < strlen($php_format); $i++) {
+        $len = strlen($php_format);
+        for ($i = 0; $i < $len; $i++) {
             $char = $php_format[$i];
             if ($char === '\\') // PHP date format escaping character
             {
@@ -1251,18 +1255,18 @@ class Admin
         $notifications = array_reverse($notifications);
 
         // Make adminNicetimeFilter available
-        require_once(__DIR__ . '/../twig/AdminTwigExtension.php');
-        $adminTwigExtension = new AdminTwigExtension();
+        require_once __DIR__ . '/../classes/Twig/AdminTwigExtension.php';
+        $adminTwigExtension = new AdminTwigExtension;
 
         $filename           = $this->grav['locator']->findResource('user://data/notifications/' . $this->grav['user']->username . YAML_EXT,
             true, true);
-        $read_notifications = CompiledYamlFile::instance($filename)->content();
+        $read_notifications = (array)CompiledYamlFile::instance($filename)->content();
 
         $notifications_processed = [];
         foreach ($notifications as $key => $notification) {
             $is_valid = true;
 
-            if (in_array($notification->id, $read_notifications)) {
+            if (in_array($notification->id, $read_notifications, true)) {
                 $notification->read = true;
             }
 
@@ -1272,7 +1276,7 @@ class Admin
 
             if ($is_valid && isset($notification->dependencies)) {
                 foreach ($notification->dependencies as $dependency => $constraints) {
-                    if ($dependency == 'grav') {
+                    if ($dependency === 'grav') {
                         if (!Semver::satisfies(GRAV_VERSION, $constraints)) {
                             $is_valid = false;
                         }
@@ -1369,7 +1373,7 @@ class Admin
         /** @var Pages $pages */
         $pages = $this->grav['pages'];
 
-        if ($path && $path[0] != '/') {
+        if ($path && $path[0] !== '/') {
             $path = "/{$path}";
         }
 
@@ -1378,14 +1382,14 @@ class Admin
         if (!$page) {
             $slug = basename($path);
 
-            if ($slug == '') {
+            if ($slug === '') {
                 return null;
             }
 
             $ppath = str_replace('\\', '/', dirname($path));
 
             // Find or create parent(s).
-            $parent = $this->getPage($ppath != '/' ? $ppath : '');
+            $parent = $this->getPage($ppath !== '/' ? $ppath : '');
 
             // Create page.
             $page = new Page;
@@ -1396,7 +1400,7 @@ class Admin
             $pages->addPage($page, $path);
 
             // Set if Modular
-            $page->modularTwig($slug[0] == '_');
+            $page->modularTwig($slug[0] === '_');
 
             // Determine page type.
             if (isset($this->session->{$page->route()})) {
@@ -1407,13 +1411,14 @@ class Admin
                 $header = ['title' => $data['title']];
 
                 if (isset($data['visible'])) {
-                    if ($data['visible'] == '' || $data['visible']) {
+                    if ($data['visible'] === '' || $data['visible']) {
                         // if auto (ie '')
-                        $children = $page->parent()->children();
+                        $pageParent = $page->parent();
+                        $children = $pageParent ? $pageParent->children() : [];
                         foreach ($children as $child) {
                             if ($child->order()) {
                                 // set page order
-                                $page->order(AdminController::getNextOrderInFolder($page->parent()->path()));
+                                $page->order(AdminController::getNextOrderInFolder($pageParent->path()));
                                 break;
                             }
                         }
@@ -1424,7 +1429,7 @@ class Admin
 
                 }
 
-                if ($data['name'] == 'modular') {
+                if ($data['name'] === 'modular') {
                     $header['body_classes'] = 'modular';
                 }
 
@@ -1446,7 +1451,7 @@ class Admin
                 $page->name($type . CONTENT_EXT);
                 $page->header();
             }
-            $page->modularTwig($slug[0] == '_');
+            $page->modularTwig($slug[0] === '_');
         }
 
         return $page;
@@ -1466,9 +1471,7 @@ class Admin
         $reader = new Reader();
         $parser = $reader->getParser($feed_url, $body, 'utf-8');
 
-        $feed = $parser->execute();
-
-        return $feed;
+        return $parser->execute();
 
     }
 
@@ -1593,20 +1596,19 @@ class Admin
      * Get all the media of a type ('images' | 'audios' | 'videos' | 'files')
      *
      * @param string $type
-     * @param Page\Page $page
+     * @param Page|null $page
      * @param array $files
      *
      * @return array
      */
-    private function getMediaOfType($type, $page, $page_files) {
+    private function getMediaOfType($type, Page $page = null, array $files)
+    {
         if ($page) {
-
-//            $path = $page->path();
             $media = $page->media();
             $mediaOfType = $media->$type();
 
             foreach($mediaOfType as $title => $file) {
-                $page_files[] = [
+                $files[] = [
                     'title' => $title,
                     'type' => $type,
                     'page_route' => $page->route(),
@@ -1614,10 +1616,10 @@ class Admin
                 ];
             }
 
-            return $page_files;
-        } else {
-            return [];
+            return $files;
         }
+
+        return [];
     }
 
     /**
@@ -1722,10 +1724,11 @@ class Admin
      */
     public function pages()
     {
+        /** @var Collection $pages */
         $pages = $this->grav['pages']->all();
 
         $pagesWithFiles = [];
-        if ($pages) foreach ($pages as $page) {
+        foreach ($pages as $page) {
             if (count($page->media()->all())) {
                 $pagesWithFiles[] = $page;
             }
@@ -1799,7 +1802,6 @@ class Admin
      */
     public function getReferrer()
     {
-        $referrer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : null;
-        return $referrer;
+        return isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : null;
     }
 }
diff --git a/classes/admincontroller.php b/classes/admincontroller.php
index 12db0401..69aca93f 100644
--- a/classes/admincontroller.php
+++ b/classes/admincontroller.php
@@ -10,6 +10,7 @@ use Grav\Common\GPM\Installer;
 use Grav\Common\Grav;
 use Grav\Common\Data;
 use Grav\Common\Page\Media;
+use Grav\Common\Page\Medium\Medium;
 use Grav\Common\Page\Page;
 use Grav\Common\Page\Pages;
 use Grav\Common\Page\Collection;
@@ -193,7 +194,7 @@ class AdminController extends AdminBaseController
             return false;
         }
 
-        if ($this->view != 'plugins') {
+        if ($this->view !== 'plugins') {
             return false;
         }
 
@@ -234,7 +235,7 @@ class AdminController extends AdminBaseController
             return false;
         }
 
-        if ($this->view != 'plugins') {
+        if ($this->view !== 'plugins') {
             return false;
         }
 
@@ -260,7 +261,7 @@ class AdminController extends AdminBaseController
             return false;
         }
 
-        if ($this->view != 'themes') {
+        if ($this->view !== 'themes') {
             return false;
         }
 
@@ -363,7 +364,7 @@ class AdminController extends AdminBaseController
 
         $data = (array)$this->data;
 
-        if ($data['route'] == '/') {
+        if ($data['route'] === '/') {
             $path = $this->grav['locator']->findResource('page://');
         } else {
             $path = $this->grav['page']->find($data['route'])->path();
@@ -403,7 +404,7 @@ class AdminController extends AdminBaseController
             preg_match(PAGE_ORDER_PREFIX_REGEX, $file, $order);
 
             if (isset($order[0])) {
-                $theOrder = intval(trim($order[0], '.'));
+                $theOrder = (int)trim($order[0], '.');
             } else {
                 $theOrder = 0;
             }
@@ -436,10 +437,8 @@ class AdminController extends AdminBaseController
         $reorder = true;
         $data    = (array)$this->data;
 
-        $config = $this->grav['config'];
-
         // Special handler for user data.
-        if ($this->view == 'user') {
+        if ($this->view === 'user') {
             if (!$this->admin->authorize(['admin.super', 'admin.users'])) {
                 //not admin.super or admin.users
                 if ($this->prepareData($data)->username !== $this->grav['user']->username) {
@@ -452,7 +451,7 @@ class AdminController extends AdminBaseController
         }
 
         // Special handler for pages data.
-        if ($this->view == 'pages') {
+        if ($this->view === 'pages') {
             /** @var Pages $pages */
             $pages = $this->grav['pages'];
 
@@ -478,8 +477,8 @@ class AdminController extends AdminBaseController
             }
 
 
-            $parent = $route && $route != '/' && $route != '.' && $route != '/.' ? $pages->dispatch($route, true) : $pages->root();
-            $original_order = intval(trim($obj->order(), '.'));
+            $parent = $route && $route !== '/' && $route !== '.' && $route !== '/.' ? $pages->dispatch($route, true) : $pages->root();
+            $original_order = (int)trim($obj->order(), '.');
 
             try {
                 // Change parent if needed and initialize move (might be needed also on ordering/folder change).
@@ -495,7 +494,7 @@ class AdminController extends AdminBaseController
             $obj->filter();
 
             // rename folder based on visible
-            if ($original_order == 1000) {
+            if ($original_order === 1000) {
                 // increment order to force reshuffle
                 $obj->order($original_order + 1);
             }
@@ -539,14 +538,14 @@ class AdminController extends AdminBaseController
             $this->grav->fireEvent('onAdminAfterSave', new Event(['object' => $obj]));
         }
 
-        if ($this->view != 'pages') {
+        if ($this->view !== 'pages') {
             // Force configuration reload.
             /** @var Config $config */
             $config = $this->grav['config'];
             $config->reload();
 
             if ($this->view === 'user') {
-                if ($obj->username == $this->grav['user']->username) {
+                if ($obj->username === $this->grav['user']->username) {
                     //Editing current user. Reload user object
                     unset($this->grav['user']->avatar);
                     $this->grav['user']->merge(User::load($this->admin->route)->toArray());
@@ -610,27 +609,27 @@ class AdminController extends AdminBaseController
     {
         $data = (array)$this->data;
 
-        if ($this->view == 'users') {
+        if ($this->view === 'users') {
             $username = strip_tags(strtolower($data['username']));
             $this->setRedirect("{$this->view}/{$username}");
 
             return true;
         }
 
-        if ($this->view == 'groups') {
+        if ($this->view === 'groups') {
             $this->setRedirect("{$this->view}/{$data['groupname']}");
 
             return true;
         }
 
-        if ($this->view != 'pages') {
+        if ($this->view !== 'pages') {
             return false;
         }
 
-        $route  = $data['route'] != '/' ? $data['route'] : '';
+        $route  = $data['route'] !== '/' ? $data['route'] : '';
         $folder = $data['folder'];
         // Handle @slugify-{field} value, automatically slugifies the specified field
-        if (substr($folder, 0, 9) == '@slugify-') {
+        if (0 === strpos($folder, '@slugify-')) {
             $folder = \Grav\Plugin\Admin\Utils::slug($data[substr($folder, 9)]);
         }
         $folder = ltrim($folder, '_');
@@ -716,7 +715,7 @@ class AdminController extends AdminBaseController
         $reload  = false;
 
         // Get the testing release value if set
-        if ($this->post['release'] == 'testing') {
+        if ($this->post['release'] === 'testing') {
             $release = 'testing';
         }
 
@@ -724,12 +723,12 @@ class AdminController extends AdminBaseController
         $current_release = $config->get('system.gpm.releases');
 
         // If the releases setting is different, save it in the system config
-        if ($current_release != $release) {
+        if ($current_release !== $release) {
             $data = new Data\Data($config->get('system'));
             $data->set('gpm.releases', $release);
 
             // Get the file location
-            $file = CompiledYamlFile::instance($this->grav['locator']->findResource("config://system.yaml"));
+            $file = CompiledYamlFile::instance($this->grav['locator']->findResource('config://system.yaml'));
             $data->file($file);
 
             // Save the configuration
@@ -755,7 +754,7 @@ class AdminController extends AdminBaseController
     {
         $cache = $this->grav['cache'];
 
-        if ($this->post['refresh'] == 'true') {
+        if ($this->post['refresh'] === 'true') {
             $cache->delete('news-feed');
         }
 
@@ -766,8 +765,8 @@ class AdminController extends AdminBaseController
                 $feed = $this->admin->getFeed();
                 if (is_object($feed)) {
 
-                    require_once(__DIR__ . '/../twig/AdminTwigExtension.php');
-                    $adminTwigExtension = new AdminTwigExtension();
+                    require_once __DIR__ . '/../classes/Twig/AdminTwigExtension.php';
+                    $adminTwigExtension = new AdminTwigExtension;
 
                     $feed_items = $feed->getItems();
 
@@ -802,7 +801,7 @@ class AdminController extends AdminBaseController
     protected function taskGetUpdates()
     {
         $data  = $this->post;
-        $flush = isset($data['flush']) && $data['flush'] == true ? true : false;
+        $flush = (isset($data['flush']) && $data['flush'] == true) ? true : false;
 
         if (isset($this->grav['session'])) {
             $this->grav['session']->close();
@@ -814,29 +813,29 @@ class AdminController extends AdminBaseController
             $resources_updates = $gpm->getUpdatable();
             if ($gpm->grav != null) {
                 $grav_updates = [
-                    "isUpdatable" => $gpm->grav->isUpdatable(),
-                    "assets"      => $gpm->grav->getAssets(),
-                    "version"     => GRAV_VERSION,
-                    "available"   => $gpm->grav->getVersion(),
-                    "date"        => $gpm->grav->getDate(),
-                    "isSymlink"   => $gpm->grav->isSymlink()
+                    'isUpdatable' => $gpm->grav->isUpdatable(),
+                    'assets'      => $gpm->grav->getAssets(),
+                    'version'     => GRAV_VERSION,
+                    'available'   => $gpm->grav->getVersion(),
+                    'date'        => $gpm->grav->getDate(),
+                    'isSymlink'   => $gpm->grav->isSymlink()
                 ];
 
                 $this->admin->json_response = [
-                    "status"  => "success",
-                    "payload" => [
-                        "resources" => $resources_updates,
-                        "grav"      => $grav_updates,
-                        "installed" => $gpm->countInstalled(),
+                    'status'  => 'success',
+                    'payload' => [
+                        'resources' => $resources_updates,
+                        'grav'      => $grav_updates,
+                        'installed' => $gpm->countInstalled(),
                         'flushed'   => $flush
                     ]
                 ];
             } else {
-                $this->admin->json_response = ["status" => "error", "message" => "Cannot connect to the GPM"];
+                $this->admin->json_response = ['status' => 'error', 'message' => 'Cannot connect to the GPM'];
             }
 
         } catch (\Exception $e) {
-            $this->admin->json_response = ["status" => "error", "message" => $e->getMessage()];
+            $this->admin->json_response = ['status' => 'error', 'message' => $e->getMessage()];
         }
 
     }
@@ -966,7 +965,7 @@ class AdminController extends AdminBaseController
             return false;
         }
 
-        $result = Gpm::install(array_keys($dependencies), ['theme' => ($type == 'theme')]);
+        $result = Gpm::install(array_keys($dependencies), ['theme' => $type === 'theme']);
 
         if ($result) {
             $this->admin->json_response = ['status' => 'success', 'message' => 'Dependencies installed successfully'];
@@ -996,7 +995,7 @@ class AdminController extends AdminBaseController
         }
 
         try {
-            $result = Gpm::install($package, ['theme' => ($type == 'theme')]);
+            $result = Gpm::install($package, ['theme' => $type === 'theme']);
         } catch (\Exception $e) {
             $this->admin->json_response = ['status' => 'error', 'message' => $e->getMessage()];
 
@@ -1043,11 +1042,11 @@ class AdminController extends AdminBaseController
         $dependent_packages = $this->admin->getPackagesThatDependOnPackage($package);
         if (count($dependent_packages) > 0) {
             if (count($dependent_packages) > 1) {
-                $message = "The installed packages <cyan>" . implode('</cyan>, <cyan>',
-                        $dependent_packages) . "</cyan> depends on this package. Please remove those first.";
+                $message = 'The installed packages <cyan>' . implode('</cyan>, <cyan>',
+                        $dependent_packages) . '</cyan> depends on this package. Please remove those first.';
             } else {
-                $message = "The installed package <cyan>" . implode('</cyan>, <cyan>',
-                        $dependent_packages) . "</cyan> depends on this package. Please remove it first.";
+                $message = 'The installed package <cyan>' . implode('</cyan>, <cyan>',
+                        $dependent_packages) . '</cyan> depends on this package. Please remove it first.';
             }
 
             $json_response = ['status' => 'error', 'message' => $message];
@@ -1072,16 +1071,14 @@ class AdminController extends AdminBaseController
             ];
             echo json_encode($json_response);
             exit;
-        } else {
-            $json_response = [
-                'status'  => 'error',
-                'message' => $this->admin->translate('PLUGIN_ADMIN.UNINSTALL_FAILED')
-            ];
-            echo json_encode($json_response);
-            exit;
         }
 
-        return true;
+        $json_response = [
+            'status'  => 'error',
+            'message' => $this->admin->translate('PLUGIN_ADMIN.UNINSTALL_FAILED')
+        ];
+        echo json_encode($json_response);
+        exit;
     }
 
     /**
@@ -1301,7 +1298,7 @@ class AdminController extends AdminBaseController
             $file             = base64_decode(urldecode($download));
             $backups_root_dir = $this->grav['locator']->findResource('backup://', true);
 
-            if (substr($file, 0, strlen($backups_root_dir)) !== $backups_root_dir) {
+            if (0 !== strpos($file, $backups_root_dir)) {
                 header('HTTP/1.1 401 Unauthorized');
                 exit();
             }
@@ -1348,7 +1345,7 @@ class AdminController extends AdminBaseController
     protected function taskGetChildTypes()
     {
         if (!$this->authorizeTask('get childtypes', ['admin.pages', 'admin.super'])) {
-            return;
+            return false;
         }
 
         $data = $this->post;
@@ -1356,6 +1353,7 @@ class AdminController extends AdminBaseController
         $rawroute = !empty($data['rawroute']) ? $data['rawroute'] : null;
 
         if ($rawroute) {
+            /** @var Page $page */
             $page = $this->grav['pages']->dispatch($rawroute);
 
             if ($page) {
@@ -1411,46 +1409,46 @@ class AdminController extends AdminBaseController
             ];
 
             if (count(array_intersect($pageStates, $flags)) > 0) {
-                if (in_array('modular', $flags)) {
+                if (in_array('modular', $flags, true)) {
                     $collection = $collection->modular();
                 }
 
-                if (in_array('nonmodular', $flags)) {
+                if (in_array('nonmodular', $flags, true)) {
                     $collection = $collection->nonModular();
                 }
 
-                if (in_array('visible', $flags)) {
+                if (in_array('visible', $flags, true)) {
                     $collection = $collection->visible();
                 }
 
-                if (in_array('nonvisible', $flags)) {
+                if (in_array('nonvisible', $flags, true)) {
                     $collection = $collection->nonVisible();
                 }
 
-                if (in_array('routable', $flags)) {
+                if (in_array('routable', $flags, true)) {
                     $collection = $collection->routable();
                 }
 
-                if (in_array('nonroutable', $flags)) {
+                if (in_array('nonroutable', $flags, true)) {
                     $collection = $collection->nonRoutable();
                 }
 
-                if (in_array('published', $flags)) {
+                if (in_array('published', $flags, true)) {
                     $collection = $collection->published();
                 }
 
-                if (in_array('nonpublished', $flags)) {
+                if (in_array('nonpublished', $flags, true)) {
                     $collection = $collection->nonPublished();
                 }
             }
             foreach ($pageStates as $pageState) {
-                if (($pageState = array_search($pageState, $flags)) !== false) {
+                if (($pageState = array_search($pageState, $flags, true)) !== false) {
                     unset($flags[$pageState]);
                 }
             }
 
             // Filter by page type
-            if (count($flags)) {
+            if ($flags) {
                 $types = [];
 
                 $pageTypes = array_keys(Pages::pageTypes());
@@ -1467,7 +1465,7 @@ class AdminController extends AdminBaseController
             }
 
             // Filter by page type
-            if (count($flags)) {
+            if ($flags) {
                 $accessLevels = $flags;
                 $collection   = $collection->ofOneOfTheseAccessLevels($accessLevels);
             }
@@ -1522,6 +1520,10 @@ class AdminController extends AdminBaseController
         }
 
         $media_list = [];
+        /**
+         * @var string $name
+         * @var Medium $medium
+         */
         foreach ($media->all() as $name => $medium) {
 
             $metadata = [];
@@ -1542,7 +1544,7 @@ class AdminController extends AdminBaseController
     }
 
     /**
-     * @return bool
+     * @return Media
      */
     protected function getMedia()
     {
@@ -1845,14 +1847,14 @@ class AdminController extends AdminBaseController
     {
         $input = (array)$this->data;
 
-        if (isset($input['folder']) && $input['folder'] != $page->value('folder')) {
+        if (isset($input['folder']) && $input['folder'] !== $page->value('folder')) {
             $order    = $page->value('order');
             $ordering = $order ? sprintf('%02d.', $order) : '';
             $page->folder($ordering . $input['folder']);
         }
 
         if (isset($input['name']) && !empty($input['name'])) {
-            $type = (string)strtolower($input['name']);
+            $type = strtolower($input['name']);
             $name = preg_replace('|.*/|', '', $type);
             if ($language) {
                 $name .= '.' . $language;
@@ -1868,7 +1870,7 @@ class AdminController extends AdminBaseController
         }
 
         // Special case for Expert mode: build the raw, unset content
-        if (isset($input['frontmatter']) && isset($input['content'])) {
+        if (isset($input['frontmatter'], $input['content'])) {
             $page->raw("---\n" . (string)$input['frontmatter'] . "\n---\n" . (string)$input['content']);
             unset($input['content']);
         // Handle header normally
@@ -1876,13 +1878,13 @@ class AdminController extends AdminBaseController
             $header = $input['header'];
 
             foreach ($header as $key => $value) {
-                if ($key == 'metadata' && is_array($header[$key])) {
+                if ($key === 'metadata' && is_array($header[$key])) {
                     foreach ($header['metadata'] as $key2 => $value2) {
                         if (isset($input['toggleable_header']['metadata'][$key2]) && !$input['toggleable_header']['metadata'][$key2]) {
                             $header['metadata'][$key2] = '';
                         }
                     }
-                } elseif ($key == 'taxonomy' && is_array($header[$key])) {
+                } elseif ($key === 'taxonomy' && is_array($header[$key])) {
                     foreach ($header[$key] as $taxkey => $taxonomy) {
                         if (is_array($taxonomy) && count($taxonomy) == 1 && trim($taxonomy[0]) == '') {
                             unset($header[$key][$taxkey]);
@@ -1896,7 +1898,7 @@ class AdminController extends AdminBaseController
             }
             if ($clean_header) {
                 $header = Utils::arrayFilterRecursive($header, function ($k, $v) {
-                    return !(is_null($v) || $v === '');
+                    return !(null === $v || $v === '');
                 });
             }
             $page->header((object)$header);
@@ -1921,7 +1923,7 @@ class AdminController extends AdminBaseController
         }
 
         // Only applies to pages.
-        if ($this->view != 'pages') {
+        if ($this->view !== 'pages') {
             return false;
         }
 
@@ -2069,7 +2071,7 @@ class AdminController extends AdminBaseController
         }
 
         // Only applies to pages.
-        if ($this->view != 'pages') {
+        if ($this->view !== 'pages') {
             return false;
         }
 
@@ -2091,7 +2093,7 @@ class AdminController extends AdminBaseController
         }
 
         // Only applies to pages.
-        if ($this->view != 'pages') {
+        if ($this->view !== 'pages') {
             return false;
         }
 
@@ -2210,11 +2212,11 @@ class AdminController extends AdminBaseController
      */
     public function determineFilenameIncludingLanguage($current_filename, $language)
     {
-        $filename = substr($current_filename, 0, -(strlen('.md')));
+        $filename = substr($current_filename, 0, -strlen('.md'));
 
-        if (substr($filename, -3, 1) == '.') {
+        if (substr($filename, -3, 1) === '.') {
             $filename = str_replace(substr($filename, -2), $language, $filename);
-        } elseif (substr($filename, -6, 1) == '.') {
+        } elseif (substr($filename, -6, 1) === '.') {
             $filename = str_replace(substr($filename, -5), $language, $filename);
         } else {
             $filename .= '.' . $language;
diff --git a/twig/AdminTwigExtension.php b/twig/AdminTwigExtension.php
index 9ca85c78..bee710f3 100644
--- a/twig/AdminTwigExtension.php
+++ b/twig/AdminTwigExtension.php
@@ -1,184 +1,4 @@
 <?php
-namespace Grav\Plugin\Admin;
+require_once __DIR__ . '../classes/Twig\AdminTwigExtension.php';
 
-use Grav\Common\Grav;
-use Grav\Common\Language\Language;
-use Symfony\Component\Yaml\Yaml;
-use Symfony\Component\Yaml\Parser;
-
-class AdminTwigExtension extends \Twig_Extension
-{
-    /**
-     * @var Grav
-     */
-    protected $grav;
-
-    /**
-     * @var Language $lang
-     */
-    protected $lang;
-
-    public function __construct()
-    {
-        $this->grav = Grav::instance();
-        $this->lang = $this->grav['user']->language;
-    }
-
-    /**
-     * Returns extension name.
-     *
-     * @return string
-     */
-    public function getName()
-    {
-        return 'AdminTwigExtension';
-    }
-
-    public function getFilters()
-    {
-        return [
-            new \Twig_SimpleFilter('tu', [$this, 'tuFilter']),
-            new \Twig_SimpleFilter('toYaml', [$this, 'toYamlFilter']),
-            new \Twig_SimpleFilter('fromYaml', [$this, 'fromYamlFilter']),
-            new \Twig_SimpleFilter('adminNicetime', [$this, 'adminNicetimeFilter']),
-        ];
-    }
-
-    public function getFunctions()
-    {
-        return [
-            new \Twig_SimpleFunction('getPageUrl', [$this, 'getPageUrl'], ['needs_context' => true]),
-            new \Twig_SimpleFunction('clone', [$this, 'cloneFunc']),
-        ];
-    }
-
-    public function cloneFunc($obj)
-    {
-        return clone $obj;
-    }
-
-    public function getPageUrl($context, $page)
-    {
-        $page_route = trim($page->rawRoute(), '/');
-        $page_lang = $page->language();
-        $base_url = $context['base_url'];
-        $base_url_simple = $context['base_url_simple'];
-        $admin_lang = Grav::instance()['session']->admin_lang ?: 'en';
-
-        if ($page_lang && $page_lang != $admin_lang) {
-            $page_url = $base_url_simple . '/' . $page_lang . '/' . $context['admin_route'] . '/pages/' . $page_route;
-        } else {
-            $page_url = $base_url . '/pages/' . $page_route;
-        }
-
-        return $page_url;
-    }
-
-    public function tuFilter()
-    {
-        $args = func_get_args();
-        $numargs = count($args);
-        $lang = null;
-
-        if (($numargs == 3 && is_array($args[1])) || ($numargs == 2 && !is_array($args[1]))) {
-            $lang = array_pop($args);
-        } elseif ($numargs == 2 && is_array($args[1])) {
-            $subs = array_pop($args);
-            $args = array_merge($args, $subs);
-        }
-
-        return $this->grav['admin']->translate($args, $lang);
-    }
-
-    public function toYamlFilter($value, $inline = true)
-    {
-        return Yaml::dump($value, $inline);
-
-    }
-
-    public function fromYamlFilter($value)
-    {
-        $yaml = new Parser();
-        return $yaml->parse($value);
-    }
-
-    public function adminNicetimeFilter($date, $long_strings = true)
-    {
-        if (empty($date)) {
-            return $this->grav['admin']->translate('NICETIME.NO_DATE_PROVIDED', null, true);
-        }
-
-        if ($long_strings) {
-            $periods = [
-                "NICETIME.SECOND",
-                "NICETIME.MINUTE",
-                "NICETIME.HOUR",
-                "NICETIME.DAY",
-                "NICETIME.WEEK",
-                "NICETIME.MONTH",
-                "NICETIME.YEAR",
-                "NICETIME.DECADE"
-            ];
-        } else {
-            $periods = [
-                "NICETIME.SEC",
-                "NICETIME.MIN",
-                "NICETIME.HR",
-                "NICETIME.DAY",
-                "NICETIME.WK",
-                "NICETIME.MO",
-                "NICETIME.YR",
-                "NICETIME.DEC"
-            ];
-        }
-
-        $lengths = ["60", "60", "24", "7", "4.35", "12", "10"];
-
-        $now = time();
-
-        // check if unix timestamp
-        if ((string)(int)$date == $date) {
-            $unix_date = $date;
-        } else {
-            $unix_date = strtotime($date);
-        }
-
-        // check validity of date
-        if (empty($unix_date)) {
-            return $this->grav['admin']->translate('NICETIME.BAD_DATE', null, true);
-        }
-
-        // is it future date or past date
-        if ($now > $unix_date) {
-            $difference = $now - $unix_date;
-            $tense      = $this->grav['admin']->translate('NICETIME.AGO', null, true);
-
-        } else {
-            $difference = $unix_date - $now;
-            $tense      = $this->grav['admin']->translate('NICETIME.FROM_NOW', null, true);
-        }
-
-        for ($j = 0; $difference >= $lengths[$j] && $j < count($lengths) - 1; $j++) {
-            $difference /= $lengths[$j];
-        }
-
-        $difference = round($difference);
-
-        if ($difference != 1) {
-            $periods[$j] .= '_PLURAL';
-        }
-
-        if ($this->grav['language']->getTranslation($this->grav['user']->language,
-            $periods[$j] . '_MORE_THAN_TWO')
-        ) {
-            if ($difference > 2) {
-                $periods[$j] .= '_MORE_THAN_TWO';
-            }
-        }
-
-        $periods[$j] = $this->grav['admin']->translate($periods[$j], null, true);
-
-        return "$difference $periods[$j] {$tense}";
-    }
-
-}
+class_alias(\Grav\Plugin\Admin\AdminTwigExtension::class, 'Grav\\Plugin\\Admin\\AdminTwigExtension');