diff --git a/core/modules/system/lib/Drupal/system/Form/ModulesListForm.php b/core/modules/system/lib/Drupal/system/Form/ModulesListForm.php
index 98a5060..fcec672 100644
--- a/core/modules/system/lib/Drupal/system/Form/ModulesListForm.php
+++ b/core/modules/system/lib/Drupal/system/Form/ModulesListForm.php
@@ -117,18 +117,21 @@ public function buildForm(array $form, array &$form_state) {
 
     // Add a wrapper around every package.
     foreach (element_children($form['modules']) as $package) {
-      $form['modules'][$package] += array(
-        '#type' => 'details',
-        '#title' => $this->t($package),
-        '#theme' => 'system_modules_details',
+      $table = array(
+        '#type' => 'table',
         '#header' => array(
           array('data' => '<span class="visually-hidden">' . $this->t('Installed') . '</span>', 'class' => array('checkbox')),
           array('data' => $this->t('Name'), 'class' => array('name')),
           array('data' => $this->t('Description'), 'class' => array('description', RESPONSIVE_PRIORITY_LOW)),
         ),
-        '#attributes' => array('class' => array('package-listing')),
+      ) + $form['modules'][$package];
+      $form['modules'][$package] = array(
+        '#type' => 'details',
+        '#title' => $this->t($package),
         // Ensure that the "Core" package comes first.
         '#weight' => $package == 'Core' ? -10 : NULL,
+        '#attributes' => array('class' => array('package-listing')),
+        'table' => $table,
       );
     }
 
@@ -159,23 +162,19 @@ public function buildForm(array $form, array &$form_state) {
    */
   protected function buildRow(array $modules, $module, $distribution) {
     // Set the basic properties.
-    $row['#required'] = array();
-    $row['#requires'] = array();
-    $row['#required_by'] = array();
-
-    $row['name']['#markup'] = $module->info['name'];
-    $row['description']['#markup'] = $this->t($module->info['description']);
-    $row['version']['#markup'] = $module->info['version'];
+    $row['#version'] = $module->info['version'];
+    $row['#requires'] = isset($extra['#requires']) ? $extra['#requires'] : FALSE;
+    $row['#required_by'] = isset($extra['#required_by']) ? $extra['#required_by'] : FALSE;
 
     // Add links for each module.
     // Used when checking if a module implements a help page.
     $help = $this->moduleHandler->moduleExists('help') ? drupal_help_arg() : FALSE;
 
     // Generate link for module's help page, if there is one.
-    $row['links']['help'] = array();
+    $extra['links']['help'] = array();
     if ($help && $module->status && in_array($module->name, $this->moduleHandler->getImplementations('help'))) {
       if ($this->moduleHandler->invoke($module->name, 'help', array("admin/help#$module->name", $help))) {
-        $row['links']['help'] = array(
+        $extra['links']['help'] = array(
           '#type' => 'link',
           '#title' => $this->t('Help'),
           '#href' => "admin/help/$module->name",
@@ -185,9 +184,9 @@ protected function buildRow(array $modules, $module, $distribution) {
     }
 
     // Generate link for module's permission, if the user has access to it.
-    $row['links']['permissions'] = array();
+    $extra['links']['permissions'] = array();
     if ($module->status && user_access('administer permissions') && in_array($module->name, $this->moduleHandler->getImplementations('permission'))) {
-      $row['links']['permissions'] = array(
+      $extra['links']['permissions'] = array(
         '#type' => 'link',
         '#title' => $this->t('Permissions'),
         '#href' => 'admin/people/permissions',
@@ -196,11 +195,11 @@ protected function buildRow(array $modules, $module, $distribution) {
     }
 
     // Generate link for module's configuration page, if it has one.
-    $row['links']['configure'] = array();
+    $extra['links']['configure'] = array();
     if ($module->status && isset($module->info['configure'])) {
       if ($this->accessManager->checkNamedRoute($module->info['configure'])) {
         $item = menu_get_item(trim($this->url($module->info['configure']), '/'));
-        $row['links']['configure'] = array(
+        $extra['links']['configure'] = array(
           '#type' => 'link',
           '#title' => $this->t('Configure'),
           '#route_name' => $module->info['configure'],
@@ -217,7 +216,7 @@ protected function buildRow(array $modules, $module, $distribution) {
     // Present a checkbox for installing and indicating the status of a module.
     $row['enable'] = array(
       '#type' => 'checkbox',
-      '#title' => $this->t('Install'),
+      //'#title' => $this->t('Install'),
       '#default_value' => (bool) $module->status,
       '#disabled' => (bool) $module->status,
     );
@@ -226,7 +225,7 @@ protected function buildRow(array $modules, $module, $distribution) {
     if (!empty($module->info['required'])) {
       // Used when displaying modules that are required by the installation profile
       $row['enable']['#disabled'] = TRUE;
-      $row['#required_by'][] = $distribution . (!empty($module->info['explanation']) ? ' ('. $module->info['explanation'] .')' : '');
+      $extra['#required_by'][] = $distribution . (!empty($module->info['explanation']) ? ' ('. $module->info['explanation'] .')' : '');
     }
 
     // Check the compatibilities.
@@ -254,7 +253,7 @@ protected function buildRow(array $modules, $module, $distribution) {
     // If this module is not compatible, disable the checkbox.
     if (!$compatible) {
       $row['enable']['#disabled'] = TRUE;
-      $row['description'] = array(
+      $extra['description'] = array(
         '#theme' => 'system_modules_incompatible',
         '#message' => $status,
       );
@@ -263,7 +262,7 @@ protected function buildRow(array $modules, $module, $distribution) {
     // If this module requires other modules, add them to the array.
     foreach ($module->requires as $dependency => $version) {
       if (!isset($modules[$dependency])) {
-        $row['#requires'][$dependency] = $this->t('@module (<span class="admin-missing">missing</span>)', array('@module' => Unicode::ucfirst($dependency)));
+        $extra['#requires'][$dependency] = $this->t('@module (<span class="admin-missing">missing</span>)', array('@module' => Unicode::ucfirst($dependency)));
         $row['enable']['#disabled'] = TRUE;
       }
       // Only display visible modules.
@@ -272,7 +271,7 @@ protected function buildRow(array $modules, $module, $distribution) {
         // Disable the module's checkbox if it is incompatible with the
         // dependency's version.
         if ($incompatible_version = drupal_check_incompatibility($version, str_replace(\Drupal::CORE_COMPATIBILITY . '-', '', $modules[$dependency]->info['version']))) {
-          $row['#requires'][$dependency] = $this->t('@module (<span class="admin-missing">incompatible with</span> version @version)', array(
+          $extra['#requires'][$dependency] = $this->t('@module (<span class="admin-missing">incompatible with</span> version @version)', array(
             '@module' => $name . $incompatible_version,
             '@version' => $modules[$dependency]->info['version'],
           ));
@@ -281,16 +280,16 @@ protected function buildRow(array $modules, $module, $distribution) {
         // Disable the checkbox if the dependency is incompatible with this
         // version of Drupal core.
         elseif ($modules[$dependency]->info['core'] != \Drupal::CORE_COMPATIBILITY) {
-          $row['#requires'][$dependency] = $this->t('@module (<span class="admin-missing">incompatible with</span> this version of Drupal core)', array(
+          $extra['#requires'][$dependency] = $this->t('@module (<span class="admin-missing">incompatible with</span> this version of Drupal core)', array(
             '@module' => $name,
           ));
           $row['enable']['#disabled'] = TRUE;
         }
         elseif ($modules[$dependency]->status) {
-          $row['#requires'][$dependency] = $this->t('@module', array('@module' => $name));
+          $extra['#requires'][$dependency] = $this->t('@module', array('@module' => $name));
         }
         else {
-          $row['#requires'][$dependency] = $this->t('@module (<span class="admin-disabled">disabled</span>)', array('@module' => $name));
+          $extra['#requires'][$dependency] = $this->t('@module (<span class="admin-disabled">disabled</span>)', array('@module' => $name));
         }
       }
     }
@@ -300,15 +299,73 @@ protected function buildRow(array $modules, $module, $distribution) {
     foreach ($module->required_by as $dependent => $version) {
       if (isset($modules[$dependent]) && empty($modules[$dependent]->info['hidden'])) {
         if ($modules[$dependent]->status == 1 && $module->status == 1) {
-          $row['#required_by'][$dependent] = $this->t('@module', array('@module' => $modules[$dependent]->info['name']));
+          $extra['#required_by'][$dependent] = $this->t('@module', array('@module' => $modules[$dependent]->info['name']));
           $row['enable']['#disabled'] = TRUE;
         }
         else {
-          $row['#required_by'][$dependent] = $this->t('@module (<span class="admin-disabled">disabled</span>)', array('@module' => $modules[$dependent]->info['name']));
+          $extra['#required_by'][$dependent] = $this->t('@module (<span class="admin-disabled">disabled</span>)', array('@module' => $modules[$dependent]->info['name']));
         }
       }
     }
 
+    // Set id for checkbox here so module label can reference it.
+    $id = drupal_html_class('edit-modules-' . $module->info['package'] . '-' . $module->name . '-enable');
+
+    $row['name']['#markup'] = $module->info['name'];
+
+    $row['enable'] += array(
+      '#wrapper_attributes' => array(
+        'class' => array('checkbox'),
+      ),
+      '#id' => $id,
+      '#parents' => array('modules', $module->info['package'], $module->name, 'enable'),
+    );
+
+    // Add the module label and expand/collapse functionalty.
+    $row['name'] = array(
+      '#prefix' => '<label id="module-' . $module->name . '" for="' . $id . '" class="module-name table-filter-text-source">',
+      '#markup' => $module->info['name'],
+      '#suffix' => '</label>',
+      '#wrapper_attributes' => array(
+        'class' => array('module'),
+      ),
+    );
+
+    // Add the description, along with any modules it requires.
+    $description = '';
+    if ($module->info['version'] || $row['#requires'] || $row['#required_by']) {
+      $description .= ' <div class="requirements">';
+      if ($module->info['version']) {
+        $description .= '<div class="admin-requirements">' . t('Version: !module-version', array('!module-version' => $module->info['version'])) . '</div>';
+      }
+      if ($row['#requires']) {
+        $description .= '<div class="admin-requirements">' . t('Requires: !module-list', array('!module-list' => implode(', ', $extra['#requires']))) . '</div>';
+      }
+      if ($row['#required_by']) {
+        $description .= '<div class="admin-requirements">' . t('Required by: !module-list', array('!module-list' => implode(', ', $extra['#required_by']))) . '</div>';
+      }
+      $description .= '</div>';
+    }
+
+    $links = '';
+    foreach (array('help', 'permissions', 'configure') as $key) {
+      $links .= (isset($extra['links'][$key]) ? drupal_render($extra['links'][$key]) : '');
+    }
+
+    if ($links) {
+      $description .= '  <div class="links">';
+      $description .= $links;
+      $description .= '</div>';
+    }
+
+    $row['description'] = array(
+      '#type' => 'details',
+      '#title' => '<span class="text"> ' . t($module->info['description']) . '</span>',
+      '#attributes' => array('id' => $id . '-description'),
+      '#description' => $description,
+      '#collapsed' => TRUE,
+    );
+
     return $row;
   }
 
@@ -341,6 +398,7 @@ protected function buildModuleList(array $form_state) {
 
     // First, build a list of all modules that were selected.
     foreach ($packages as $items) {
+      unset($items['table']);
       foreach ($items as $name => $checkbox) {
         if ($checkbox['enable'] && !$this->moduleHandler->moduleExists($name)) {
           $modules['install'][$name] = $data[$name]->info['name'];
diff --git a/core/modules/system/lib/Drupal/system/Form/ModulesUninstallForm.php b/core/modules/system/lib/Drupal/system/Form/ModulesUninstallForm.php
index ed92064..8859445 100644
--- a/core/modules/system/lib/Drupal/system/Form/ModulesUninstallForm.php
+++ b/core/modules/system/lib/Drupal/system/Form/ModulesUninstallForm.php
@@ -88,35 +88,51 @@ public function buildForm(array $form, array &$form_state) {
     $this->moduleHandler->loadInclude('system', 'inc', 'system.admin');
     uasort($uninstallable, 'system_sort_modules_by_info_name');
 
-    $form['uninstall'] = array('#tree' => TRUE);
+    $form['uninstall'] = array(
+      '#type' => 'table',
+      '#header' => array(t('Uninstall'), t('Name'), t('Description')),
+      '#empty' => t('There are no items yet. <a href="@add-url">Disable a module</a>', array(
+        '@add-url' => url('admin/modules'),
+      )),
+      '#tableselect' => TRUE,
+    );
+
     foreach ($uninstallable as $module) {
       $name = $module->info['name'] ?: $module->name;
-      $form['modules'][$module->name]['#module_name'] = $name;
-      $form['modules'][$module->name]['name']['#markup'] = $name;
-      $form['modules'][$module->name]['description']['#markup'] = $this->t($module->info['description']);
-
-      $form['uninstall'][$module->name] = array(
-        '#type' => 'checkbox',
-        '#title' => $this->t('Uninstall @module module', array('@module' => $name)),
-        '#title_display' => 'invisible',
-      );
+      $form['uninstall'][$module->name]['name']['#markup'] = $name;
+      $form['uninstall'][$module->name]['description']['#markup'] = t($module->info['description']);
 
       // All modules which depend on this one must be uninstalled first, before
       // we can allow this module to be uninstalled. (The installation profile
       // is excluded from this list.)
+      $required_modules = array();
       foreach (array_keys($module->required_by) as $dependent) {
         if ($dependent != $profile && drupal_get_installed_schema_version($dependent) != SCHEMA_UNINSTALLED) {
           $name = isset($modules[$dependent]->info['name']) ? $modules[$dependent]->info['name'] : $dependent;
           $form['modules'][$module->name]['#required_by'][] = $name;
           $form['uninstall'][$module->name]['#disabled'] = TRUE;
+          $required_modules[] = $name;
         }
       }
+
+      if (!empty($required_modules)) {
+        $disabled_message = format_plural(count($required_modules),
+        'To uninstall @module, the following module must be uninstalled first: @required_modules',
+        'To uninstall @module, the following modules must be uninstalled first: @required_modules',
+        array('@module' => $module->name, '@required_modules' => implode(', ', $required_modules)));
+        $disabled_message = '<div class="admin-requirements">' . $disabled_message . '</div>';
+      }
+      else {
+        $disabled_message = '';
+      }
+      $form['uninstall'][$module->name]['uninstall']['#markup'] = t($disabled_message);
     }
 
     $form['actions'] = array('#type' => 'actions');
     $form['actions']['submit'] = array(
       '#type' => 'submit',
       '#value' => $this->t('Uninstall'),
+      '#tableselect' => TRUE,
     );
 
     return $form;
diff --git a/core/modules/system/lib/Drupal/system/Tests/Module/RequiredTest.php b/core/modules/system/lib/Drupal/system/Tests/Module/RequiredTest.php
index 1de4535..d0e3242 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Module/RequiredTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Module/RequiredTest.php
@@ -29,7 +29,7 @@ function testDisableRequired() {
       // Check to make sure the checkbox for each required module is disabled
       // and checked (or absent from the page if the module is also hidden).
       if (!empty($info['required'])) {
-        $field_name = "modules[{$info['package']}][$module][enable]";
+        $field_name = "modules[{$info['package']}][_package_table][$module][enable]";
         if (empty($info['hidden'])) {
           $this->assertFieldByXPath("//input[@name='$field_name' and @disabled='disabled' and @checked='checked']", '', format_string('Field @name was disabled and checked.', array('@name' => $field_name)));
         }
diff --git a/core/modules/system/lib/Drupal/system/Tests/Module/VersionTest.php b/core/modules/system/lib/Drupal/system/Tests/Module/VersionTest.php
index c48e8a2..620a8d2 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Module/VersionTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Module/VersionTest.php
@@ -59,7 +59,7 @@ function testModuleVersions() {
     $n = count($dependencies);
     for ($i = 0; $i < $n; $i++) {
       $this->drupalGet('admin/modules');
-      $checkbox = $this->xpath('//input[@id="edit-modules-testing-module-test-enable"]');
+      $checkbox = $this->xpath('//input[@id="edit-modules-testing-package-table-module-test-enable"]');
       $this->assertEqual(!empty($checkbox[0]['disabled']), $i % 2, $dependencies[$i]);
     }
   }
diff --git a/core/modules/system/lib/Drupal/system/Tests/System/DateFormatsLanguageTest.php b/core/modules/system/lib/Drupal/system/Tests/System/DateFormatsLanguageTest.php
index 2b63cc9..adb100c 100644
--- a/core/modules/system/lib/Drupal/system/Tests/System/DateFormatsLanguageTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/System/DateFormatsLanguageTest.php
@@ -80,17 +80,17 @@ function testLocalizeDateFormats() {
     $this->drupalGet('admin/config/regional/date-time/locale');
     $this->assertText('French', 'Configured languages appear.');
     $edit = array(
-      'date_format_long' => 'example_style_fr',
-      'date_format_medium' => 'example_style_fr',
-      'date_format_short' => 'example_style_fr',
+      'date_formats[long][pattern]' => 'example_style_fr',
+      'date_formats[medium][pattern]' => 'example_style_fr',
+      'date_formats[short][pattern]' => 'example_style_fr',
     );
     $this->drupalPostForm('admin/config/regional/date-time/locale/fr/edit', $edit, t('Save configuration'));
     $this->assertText(t('Configuration saved.'), 'French date formats updated.');
 
     $edit = array(
-      'date_format_long' => 'example_style_en',
-      'date_format_medium' => 'example_style_en',
-      'date_format_short' => 'example_style_en',
+      'date_formats[long][pattern]' => 'example_style_en',
+      'date_formats[medium][pattern]' => 'example_style_en',
+      'date_formats[short][pattern]' => 'example_style_en',
     );
     $this->drupalPostForm('admin/config/regional/date-time/locale/en/edit', $edit, t('Save configuration'));
     $this->assertText(t('Configuration saved.'), 'English date formats updated.');
diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index f1a428f..2533d18 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -528,86 +528,6 @@ function theme_status_report($variables) {
 }
 
 /**
- * Returns HTML for the modules form.
- *
- * @param $variables
- *   An associative array containing:
- *   - form: A render element representing the form.
- *
- * @ingroup themeable
- */
-function theme_system_modules_details($variables) {
-  $form = $variables['form'];
-
-  // Individual table headers.
-  $rows = array();
-  // Iterate through all the modules, which are children of this element.
-  foreach (element_children($form) as $key) {
-    // Stick the key into $module for easier access.
-    $module = $form[$key];
-    // Create the row for the table.
-    $row = array();
-    // Add the checkbox into the first cell.
-    unset($module['enable']['#title']);
-    $module['#requires'] = array_filter($module['#requires']);
-    $module['#required_by'] = array_filter($module['#required_by']);
-
-    $requires = !empty($module['#requires']);
-    $required_by = !empty($module['#required_by']);
-    $version = !empty($module['version']['#markup']);
-
-    $row[] = array('class' => array('checkbox'), 'data' => drupal_render($module['enable']));
-
-    // Add the module label and expand/collapse functionalty.
-    $col2 = '<label id="module-' . $key . '" for="' . $module['enable']['#id'] . '" class="module-name table-filter-text-source">' . drupal_render($module['name']) . '</label>';
-    $row[] = array('class' => array('module'), 'data' => $col2);
-
-    // Add the description, along with any modules it requires.
-    $description = '';
-    if ($version || $requires || $required_by) {
-      $description .= ' <div class="requirements">';
-      if ($version) {
-        $description .= '<div class="admin-requirements">' . t('Version: !module-version', array('!module-version' => drupal_render($module['version']))) . '</div>';
-      }
-      if ($requires) {
-        $description .= '<div class="admin-requirements">' . t('Requires: !module-list', array('!module-list' => implode(', ', $module['#requires']))) . '</div>';
-      }
-      if ($required_by) {
-        $description .= '<div class="admin-requirements">' . t('Required by: !module-list', array('!module-list' => implode(', ', $module['#required_by']))) . '</div>';
-      }
-      $description .= '</div>';
-    }
-    $links = '';
-    foreach (array('help', 'permissions', 'configure') as $key) {
-      $links .= drupal_render($module['links'][$key]);
-    }
-    if ($links) {
-      $description .= '  <div class="links">';
-      $description .= $links;
-      $description .= '</div>';
-    }
-    $details = array(
-      '#type' => 'details',
-      '#title' => '<span class="text"> ' . drupal_render($module['description']) . '</span>',
-      '#attributes' => array('id' => $module['enable']['#id'] . '-description'),
-      '#description' => $description,
-      '#collapsed' => TRUE,
-    );
-    $col4 = drupal_render($details);
-    $row[] = array('class' => array('description', 'expand'), 'data' => $col4);
-
-    $rows[] = $row;
-  }
-
-  $table = array(
-    '#theme' => 'table',
-    '#header' => $form['#header'],
-    '#rows' => $rows,
-  );
-  return drupal_render($table);
-}
-
-/**
  * Returns HTML for a message about incompatible modules.
  *
  * @param $variables
@@ -621,61 +541,6 @@ function theme_system_modules_incompatible($variables) {
 }
 
 /**
- * Returns HTML for a table of currently disabled modules.
- *
- * @param $variables
- *   An associative array containing:
- *   - form: A render element representing the form.
- *
- * @ingroup themeable
- */
-function theme_system_modules_uninstall($variables) {
-  $form = $variables['form'];
-
-  // No theming for the confirm form.
-  if (isset($form['confirm'])) {
-    return drupal_render($form);
-  }
-
-  // Table headers.
-  $header = array(t('Uninstall'),
-    t('Name'),
-    t('Description'),
-  );
-
-  // Display table.
-  $rows = array();
-  foreach (element_children($form['modules']) as $module) {
-    if (!empty($form['modules'][$module]['#required_by'])) {
-      $disabled_message = format_plural(count($form['modules'][$module]['#required_by']),
-        'To uninstall @module, the following module must be uninstalled first: @required_modules',
-        'To uninstall @module, the following modules must be uninstalled first: @required_modules',
-        array('@module' => $form['modules'][$module]['#module_name'], '@required_modules' => implode(', ', $form['modules'][$module]['#required_by'])));
-      $disabled_message = '<div class="admin-requirements">' . $disabled_message . '</div>';
-    }
-    else {
-      $disabled_message = '';
-    }
-    $rows[] = array(
-      array('data' => drupal_render($form['uninstall'][$module]), 'align' => 'center'),
-      '<strong><label for="' . $form['uninstall'][$module]['#id'] . '">' . drupal_render($form['modules'][$module]['name']) . '</label></strong>',
-      array('data' => drupal_render($form['modules'][$module]['description']) . $disabled_message, 'class' => array('description')),
-    );
-  }
-
-  $table = array(
-    '#theme' => 'table',
-    '#header' => $header,
-    '#rows' => $rows,
-    '#empty' => t('No modules are available to uninstall.'),
-  );
-  $output  = drupal_render($table);
-  $output .= drupal_render_children($form);
-
-  return $output;
-}
-
-/**
  * Returns HTML for the Appearance page.
  *
  * @param $variables
@@ -804,12 +669,23 @@ function system_date_format_localize_form($form, &$form_state, $langcode) {
     $choices[$date_format_id] = $date_service->format(REQUEST_TIME, $date_format_id);
   }
 
+  $form['date_formats'] = array(
+    '#type' => 'table',
+    '#header' => array(
+      'machine_name' => t('Name'),
+      'pattern' => t('Format'),
+    ),
+  );
+
   // Display a form field for each format type.
   foreach ($formats as $date_format_id => $format_info) {
+    $form['date_formats'][$date_format_id]['machine_name'] = array(
+      '#markup' => t($format_info->label) ,
+    );
+
     // Show date format select list.
-    $form['date_formats']['date_format_' . $date_format_id] = array(
+    $form['date_formats'][$date_format_id]['pattern'] = array(
       '#type' => 'select',
-      '#title' => check_plain($format_info->label()),
       '#attributes' => array('class' => array('date-format')),
       '#default_value' => isset($choices[$date_format_id]) ? $date_format_id : 'custom',
       '#options' => $choices,
@@ -833,8 +709,8 @@ function system_date_format_localize_form_submit($form, &$form_state) {
 
   $formats = entity_load_multiple('date_format');
   foreach ($formats as $date_format_id => $format_info) {
-    if (isset($form_state['values']['date_format_' . $date_format_id])) {
-      $format = $form_state['values']['date_format_' . $date_format_id];
+    if (isset($form_state['values']['date_formats'][$date_format_id]['pattern'])) {
+      $format = $form_state['values']['date_formats'][$date_format_id]['pattern'];
       system_date_format_localize_form_save($langcode, $date_format_id, $formats[$format]);
     }
   }
@@ -843,42 +719,6 @@ function system_date_format_localize_form_submit($form, &$form_state) {
 }
 
 /**
- * Returns HTML for a locale date format form.
- *
- * @param $variables
- *   An associative array containing:
- *   - form: A render element representing the form.
- *
- * @ingroup themeable
- */
-function theme_system_date_format_localize_form($variables) {
-  $form = $variables['form'];
-  $header = array(
-    'machine_name' => t('Machine Name'),
-    'pattern' => t('Format'),
-  );
-
-  foreach (element_children($form['date_formats']) as $key) {
-    $row = array();
-    $row[] = $form['date_formats'][$key]['#title'];
-    unset($form['date_formats'][$key]['#title']);
-    $row[] = array('data' => drupal_render($form['date_formats'][$key]));
-    $rows[] = $row;
-  }
-
-  $table = array(
-    '#theme' => 'table',
-    '#header' => $header,
-    '#rows' => $rows,
-  );
-  $output = drupal_render($form['language']);
-  $output .= drupal_render($table);
-  $output .= drupal_render_children($form);
-
-  return $output;
-}
-
-/**
  * Save locale specific date formats to the database.
  *
  * @param string $langcode
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index cdfddea..3b3d0b2 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -151,18 +151,10 @@ function system_theme() {
     'confirm_form' => array(
       'render element' => 'form',
     ),
-    'system_modules_details' => array(
-      'render element' => 'form',
-      'file' => 'system.admin.inc',
-    ),
     'system_modules_incompatible' => array(
       'variables' => array('message' => NULL),
       'file' => 'system.admin.inc',
     ),
-    'system_modules_uninstall' => array(
-      'render element' => 'form',
-      'file' => 'system.admin.inc',
-    ),
     'status_report' => array(
       'variables' => array('requirements' => NULL),
       'file' => 'system.admin.inc',
@@ -189,9 +181,6 @@ function system_theme() {
     'system_compact_link' => array(
       'variables' => array(),
     ),
-    'system_date_format_localize_form' => array(
-      'render element' => 'form',
-    ),
   ));
 }