diff -u b/README.md b/README.md
--- b/README.md
+++ b/README.md
@@ -50,7 +50,7 @@
 Instructions
 ------------
 - Download the module running ```composer require drupal/pagerer:^3``` from
-the command line.
+  the command line.
 - Enable the module.
 - Check the Configuration page to setup.
 - Create and configure any number of 'preset' pagers.
diff -u b/pagerer.module b/pagerer.module
--- b/pagerer.module
+++ b/pagerer.module
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Module file.
+ * Providing a collection of pager styles.
  */
 
 use Drupal\Component\Utility\Html;
diff -u b/pagerer_example/pagerer_example.routing.yml b/pagerer_example/pagerer_example.routing.yml
--- b/pagerer_example/pagerer_example.routing.yml
+++ b/pagerer_example/pagerer_example.routing.yml
@@ -8,3 +8,3 @@
   requirements:
-    # Accessible = TRUE
+    # Allow unrestricted access to example page.
     _access: 'TRUE'
diff -u b/src/Form/PagererPresetEditForm.php b/src/Form/PagererPresetEditForm.php
--- b/src/Form/PagererPresetEditForm.php
+++ b/src/Form/PagererPresetEditForm.php
@@ -188,14 +188,18 @@
     if (strpos($trigger, 'config', 0) === 0) {
       $e = explode('_', $trigger);
       $pane = $e[1];
-      $form_state->setRedirect('entity.pagerer_preset.pane_edit_form',
-      ['pagerer_preset' => $this->entity->id(), 'pane' => $pane]);
+      $form_state->setRedirect(
+        'entity.pagerer_preset.pane_edit_form',
+        ['pagerer_preset' => $this->entity->id(), 'pane' => $pane]
+      );
     }
     elseif (strpos($trigger, 'reset', 0) === 0) {
       $e = explode('_', $trigger);
       $pane = $e[1];
-      $form_state->setRedirect('entity.pagerer_preset.pane_reset_form',
-      ['pagerer_preset' => $this->entity->id(), 'pane' => $pane]);
+      $form_state->setRedirect(
+        'entity.pagerer_preset.pane_reset_form',
+        ['pagerer_preset' => $this->entity->id(), 'pane' => $pane]
+      );
     }
     else {
       $this->messenger->addMessage($this->t('Changes to the pager %label have been saved.', ['%label' => $this->entity->label()]));
reverted:
--- b/src/Form/PagererUrlConfigForm.php
+++ a/src/Form/PagererUrlConfigForm.php
@@ -74,8 +74,7 @@
    */
   public function validateForm(array &$form, FormStateInterface $form_state) {
     parent::validateForm($form, $form_state);
+    if (in_array((string) $form_state->getValue('querystring_key'), ['page', 'page_ak'])) {
-    if (in_array((string) $form_state->getValue('querystring_key'),
-    ['page', 'page_ak'])) {
       $form_state->setErrorByName('querystring_key', $this->t("<kbd>'page'</kbd> and <kbd>'page_ak'</kbd> can not be used for replacement. Choose a different key name."));
     }
   }
reverted:
--- b/src/Pagerer.php
+++ a/src/Pagerer.php
@@ -24,7 +24,7 @@
   /**
    * The route name.
    *
+   * @var \Symfony\Component\Routing\Route|string
-   * @var Symfony\Component\Routing\Route|string
    */
   protected Route|string $routeName;
 
diff -u b/src/Plugin/PagererStyleManager.php b/src/Plugin/PagererStyleManager.php
--- b/src/Plugin/PagererStyleManager.php
+++ b/src/Plugin/PagererStyleManager.php
@@ -16,7 +16,17 @@
 class PagererStyleManager extends DefaultPluginManager implements PagererStyleManagerInterface {
 
   /**
-   * Construct function.
+   * Constructs an PagererStyleManager object.
+   *
+   * @param \Traversable $namespaces
+   *   An object that implements \Traversable which contains the root paths
+   *   keyed by the corresponding namespace to look for plugin implementations.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
+   *   Cache backend instance to use.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+   *   The module handler to invoke the alter hook with.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $configFactory
+   *   The configuration factory.
    */
   public function __construct(
     \Traversable $namespaces,
diff -u b/src/Plugin/pagerer/Adaptive.php b/src/Plugin/pagerer/Adaptive.php
--- b/src/Plugin/pagerer/Adaptive.php
+++ b/src/Plugin/pagerer/Adaptive.php
@@ -80,12 +80,16 @@
 
     // First.
     $pages[0] = $this->getPageItem(-$current, 'absolute', FALSE, ($current == 0 ? 'page_current' : 'page'), FALSE);
-    $pages[0]['href'] = $this->pagerManager->getHref($this->pager,
-    $this->parameters, 0, [0, $last]);
+    $pages[0]['href'] = $this->pagerManager->getHref(
+      $this->pager,
+      $this->parameters, 0, [0, $last]
+    );
     // Last.
     $pages[$last] = $this->getPageItem($last - $current, 'absolute', FALSE, ($current == $last ? 'page_current' : 'page'), FALSE);
-    $pages[$last]['href'] = $this->pagerManager->getHref($this->pager,
-    $this->parameters, $last, [0, $last]);
+    $pages[$last]['href'] = $this->pagerManager->getHref(
+      $this->pager,
+      $this->parameters, $last, [0, $last]
+    );
     // Neighborhood.
     $pages = $this->buildNeighborhoodPageList($pages);
     // Adaptive keys left pointed page.
@@ -124,8 +128,12 @@
         $d = &$pages[$kpages[$x]];
         // Adaptive page.
         if (isset($d['outer_page'])) {
-          $d['href'] = $this->pagerManager->getHref($this->pager,
-          $this->parameters, $kpages[$x], [$kpages[$x - 1], $kpages[$x + 1]]);
+          $d['href'] = $this->pagerManager->getHref(
+            $this->pager,
+            $this->parameters,
+            $kpages[$x],
+            [$kpages[$x - 1], $kpages[$x + 1]]
+          );
           continue;
 
         }
diff -u b/src/Plugin/views/pager/Pagerer.php b/src/Plugin/views/pager/Pagerer.php
--- b/src/Plugin/views/pager/Pagerer.php
+++ b/src/Plugin/views/pager/Pagerer.php
@@ -34,15 +34,11 @@
 
   /**
    * The list of pagerer presets.
-   *
-   * @var \Drupal\Core\Entity\EntityListBuilderInterface
    */
   protected EntityListBuilderInterface $presetsList;
 
   /**
    * The Pagerer preset entity storage.
-   *
-   * @var \Drupal\Core\Entity\EntityStorageInterface
    */
   protected EntityStorageInterface $presetStorage;
 
diff -u b/tests/src/Functional/PagererTest.php b/tests/src/Functional/PagererTest.php
--- b/tests/src/Functional/PagererTest.php
+++ b/tests/src/Functional/PagererTest.php
@@ -567,7 +567,6 @@
 
     // Loop through test sets.
     foreach (['page', 'pg_0', 'px_1'] as $set) {
-      // $match_querystring = 'expected_querystring_' . $set;
       switch ($set) {
         case 'core':
           // Run with default: 'page' and 0-based page numbers.
diff -u b/tests/src/FunctionalJavascript/CorePagerReplacePaginationAJAXTest.php b/tests/src/FunctionalJavascript/CorePagerReplacePaginationAJAXTest.php
--- b/tests/src/FunctionalJavascript/CorePagerReplacePaginationAJAXTest.php
+++ b/tests/src/FunctionalJavascript/CorePagerReplacePaginationAJAXTest.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\Tests\pagerer\FunctionalJavascript;
 
-use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Drupal\Tests\views\FunctionalJavascript\PaginationAJAXTest;
 
 /**
@@ -12,8 +11,6 @@
  */
 class CorePagerReplacePaginationAJAXTest extends PaginationAJAXTest {
 
-  use StringTranslationTrait;
-
   /**
    * The URL for Pagerer admin UI page.
    *
@@ -36,7 +33,7 @@
     $this->drupalGet($this->pagererAdmin . '/preset/add');
     $this->submitForm([
       'label' => 'core_replace',
-    ], $this->t('Create'));
+    ], 'Create');
 
     // Make 'core_replace' pagerer preset the global pager replacement.
     \Drupal::configFactory()->getEditable('pagerer.settings')