diff -u b/core/modules/image/image.module b/core/modules/image/image.module
--- b/core/modules/image/image.module
+++ b/core/modules/image/image.module
@@ -128,10 +128,6 @@
     ),
 
     // Theme functions in image.admin.inc.
-    'image_style_effects' => array(
-      'render element' => 'form',
-      'file' => 'image.admin.inc',
-    ),
     'image_style_preview' => array(
       'variables' => array('style' => NULL),
       'file' => 'image.admin.inc',
@@ -163,6 +159,10 @@
     ),
 
     // Theme functions in image.admin.inc.
+    'image_style_effects' => array(
+      'render element' => 'form',
+      'file' => 'image.admin.inc',
+    ),
     'image_style_preview' => array(
       'variables' => array('style' => NULL),
       'file' => 'image.admin.inc',
diff -u b/core/modules/image/lib/Drupal/image/Form/ImageStyleEditForm.php b/core/modules/image/lib/Drupal/image/Form/ImageStyleEditForm.php
--- b/core/modules/image/lib/Drupal/image/Form/ImageStyleEditForm.php
+++ b/core/modules/image/lib/Drupal/image/Form/ImageStyleEditForm.php
@@ -79,7 +79,7 @@
         array(
           'action' => 'order',
           'relationship' => 'sibling',
-          'group' => 'image-style-order-weight',
+          'group' => 'image-effect-order-weight',
         ),
       ),
       '#attributes' => array(
@@ -115,7 +115,7 @@
         '#title_display' => 'invisible',
         '#default_value' => $effect->getWeight(),
         '#attributes' => array(
-          'class' => array('image-style-order-weight'),
+          'class' => array('image-effect-order-weight'),
         ),
       );
 
@@ -178,7 +178,7 @@
       '#title' => $this->t('Weight for new effect'),
       '#title_display' => 'invisible',
       '#default_value' => count($this->entity->getEffects()) + 1,
-      '#attributes' => array('class' => array('image-style-order-weight')),
+      '#attributes' => array('class' => array('image-effect-order-weight')),
     );
     $form['effects']['new']['operations'] = array(
       'data' => array(),