diff --git a/drush/features.drush.inc b/drush/features.drush.inc
index fd33551..d913ce5 100644
--- a/drush/features.drush.inc
+++ b/drush/features.drush.inc
@@ -605,15 +605,15 @@ function drush_features_import() {
           $dt_args['@component'] = $component;
           $confirmation_message = 'Do you really want to import @module : @component?';
           if ($skip_confirmation || drush_confirm(dt($confirmation_message, $dt_args))) {
-            /** @var \Drupal\features\ConfigurationItem $item */
             if (!isset($config[$component])) {
               // Import missing component.
               $item = $manager->getConfigType($component);
-              $config_revert->import($item->getType(), $item->getShortName());
+              $config_revert->import($item['type'], $item['name_short']);
               drush_log(dt('Import @module : @component.', $dt_args), 'ok');
             }
             else {
               // Revert existing component.
+              /** @var \Drupal\features\ConfigurationItem $item */
               $item = $config[$component];
               $config_revert->revert($item->getType(), $item->getShortName());
               drush_log(dt('Reverted @module : @component.', $dt_args), 'ok');
diff --git a/modules/features_ui/src/Form/FeaturesEditForm.php b/modules/features_ui/src/Form/FeaturesEditForm.php
index 239abe0..704631e 100644
--- a/modules/features_ui/src/Form/FeaturesEditForm.php
+++ b/modules/features_ui/src/Form/FeaturesEditForm.php
@@ -520,12 +520,12 @@ class FeaturesEditForm extends FormBase {
     foreach ($config as $item_name => $item) {
       if (($item->getPackage() != $package_name) &&
         !empty($packages[$item->getPackage()]) && ($packages[$item->getPackage()]['status'] != FeaturesManagerInterface::STATUS_NO_EXPORT)) {
-        $this->conflicts[$item->getType()][$item->getShortName()] = $item;
+        $this->conflicts[$item->getType()][$item->getShortName()] = $item->getLabel();
       }
       if ($this->allowConflicts
         || !isset($this->conflicts[$item->getType()][$item->getShortName()])
         || (!empty($this->package['config_orig']) && in_array($item_name, $this->package['config_orig']))) {
-        $components[$item->getType()][$item->getShortName()] = $item;
+        $components[$item->getType()][$item->getShortName()] = $item->getLabel();
       }
     }
 
@@ -536,7 +536,7 @@ class FeaturesEditForm extends FormBase {
         $item = $config[$item_name];
         // Remove any conflicts if those are not being allowed.
         // if ($this->allowConflicts || !isset($this->conflicts[$item['type']][$item['name_short']])) {
-        $exported_features_info[$item->getType()][$item->getShortName()] = $item;
+        $exported_features_info[$item->getType()][$item->getShortName()] = $item->getLabel();
         // }
       }
     }
@@ -548,7 +548,7 @@ class FeaturesEditForm extends FormBase {
       $info = !empty($this->package['info']['features'][$constraint]) ? $this->package['info']['features'][$constraint] : array();
       foreach ($info as $item_name) {
         $item = $config[$item_name];
-        $this->{$constraint}[$item->getType()][$item->getShortName()] = $item;
+        $this->{$constraint}[$item->getType()][$item->getShortName()] = $item->getLabel();
       }
     }
 
@@ -556,7 +556,7 @@ class FeaturesEditForm extends FormBase {
     $new_features_info = array();
     foreach ($this->package['config'] as $item_name) {
       $item = $config[$item_name];
-      $new_features_info[$item->getType()][$item->getShortName()] = $item;
+      $new_features_info[$item->getType()][$item->getShortName()] = $item->getLabel();
     }
     $new_features_info['dependencies'] = !empty($this->package['dependencies']) ? $this->package['dependencies'] : array();
 
@@ -616,13 +616,13 @@ class FeaturesEditForm extends FormBase {
         $exported_components = !empty($exported_features_info[$component]) ? $exported_features_info[$component] : array();
         $new_components = !empty($new_features_info[$component]) ? $new_features_info[$component] : array();
 
-        foreach ($component_info as $key => $value) {
+        foreach ($component_info as $key => $label) {
           $config_name = $this->featuresManager->getFullName($component, $key);
           // If checkbox in Sources is checked, move it to Added section.
           if (!$form_state->isValueEmpty(array($component, 'sources', 'selected', $key))) {
             $form_state->setValue(array($component, 'sources', 'selected', $key), FALSE);
             $form_state->setValue(array($component, 'added', $key), 1);
-            $component_export['options']['added'][$key] = $this->configLabel($component, $key, $value['label']);
+            $component_export['options']['added'][$key] = $this->configLabel($component, $key, $label);
             $component_export['selected']['added'][$key] = $key;
             // If this was previously excluded, we don't need to set it as
             // required because it was automatically assigned.
@@ -690,7 +690,7 @@ class FeaturesEditForm extends FormBase {
                 $default_value = FALSE;
               }
             }
-            $component_export['options'][$section][$key] = $this->configLabel($component, $key, $value['label']);
+            $component_export['options'][$section][$key] = $this->configLabel($component, $key, $label);
             $component_export['selected'][$section][$key] = $default_value;
             // Save which dependencies are specifically excluded from
             // auto-detection.
@@ -728,7 +728,7 @@ class FeaturesEditForm extends FormBase {
           elseif (!$form_state->isSubmitted() && isset($exported_components[$key])) {
             // Component is not part of new export, but was in original export.
             // Mark component as Added when creating initial form.
-            $component_export['options']['added'][$key] = $this->configLabel($component, $key, $value['label']);
+            $component_export['options']['added'][$key] = $this->configLabel($component, $key, $label);
             $component_export['selected']['added'][$key] = $key;
           }
           else {
@@ -737,7 +737,7 @@ class FeaturesEditForm extends FormBase {
             foreach (array('included', 'added') as $section) {
               // Restore any user-selected checkboxes.
               if (!$form_state->isValueEmpty(array($component, $section, $key))) {
-                $component_export['options'][$section][$key] = $this->configLabel($component, $key, $value['label']);
+                $component_export['options'][$section][$key] = $this->configLabel($component, $key, $label);
                 $component_export['selected'][$section][$key] = $key;
                 $added = TRUE;
               }
@@ -745,7 +745,7 @@ class FeaturesEditForm extends FormBase {
             if (!$added) {
               // If not Included or Added, then put it back in the unchecked
               // Sources checkboxes.
-              $component_export['options']['sources'][$key] = $this->configLabel($component, $key, $value['label']);
+              $component_export['options']['sources'][$key] = $this->configLabel($component, $key, $label);
               $component_export['selected']['sources'][$key] = FALSE;
             }
           }
diff --git a/src/FeaturesManager.php b/src/FeaturesManager.php
index aeda7d1..6c954cd 100644
--- a/src/FeaturesManager.php
+++ b/src/FeaturesManager.php
@@ -496,7 +496,7 @@ class FeaturesManager implements FeaturesManagerInterface {
         $already_assigned = !empty($config_collection[$item_name]->getPackage());
         // If this is the profile package, we can reassign extension-provided configuration.
         $assignable = (!$extension_provided || $this->getAssigner()->getBundle($package['bundle'])->isProfilePackage($package['machine_name']));
-        $excluded_from_package = in_array($package_name, $config_collection[$item_name]['package_excluded']);
+        $excluded_from_package = in_array($package_name, $config_collection[$item_name]->getPackageExcluded());
         $already_in_package = in_array($item_name, $package['config']);
         if (($force || (!$already_assigned && $assignable && !$excluded_from_package)) && !$already_in_package) {
           // Add the item to the package's config array.
@@ -954,16 +954,16 @@ class FeaturesManager implements FeaturesManagerInterface {
           }
 
           $config_collection[$name] = (new ConfigurationItem($name, $data, [
-            'name_short' => $item_name,
+            'shortName' => $item_name,
             'label' => $label,
             'type' => $config_type,
             'dependents' => array_keys($dependents),
             // Default to the install directory.
             'subdirectory' => InstallStorage::CONFIG_INSTALL_DIRECTORY,
             'package' => '',
-            'extension_provided' => NULL,
-            'providing_feature' => isset($existing_config[$name]) ? $existing_config[$name] : NULL,
-            'package_excluded' => [],
+            'extensionProvided' => NULL,
+            'providingFeature' => isset($existing_config[$name]) ? $existing_config[$name] : NULL,
+            'packageExcluded' => [],
           ]));
         }
       }
diff --git a/src/Plugin/FeaturesAssignment/FeaturesAssignmentBaseType.php b/src/Plugin/FeaturesAssignment/FeaturesAssignmentBaseType.php
index f72a339..833cf57 100644
--- a/src/Plugin/FeaturesAssignment/FeaturesAssignmentBaseType.php
+++ b/src/Plugin/FeaturesAssignment/FeaturesAssignmentBaseType.php
@@ -41,7 +41,7 @@ class FeaturesAssignmentBaseType extends FeaturesAssignmentMethodBase {
 
     foreach ($config_collection as $item_name => $item) {
       if (in_array($item->getType(), $config_base_types)) {
-        if (!isset($packages[$item['name_short']]) && !$item->getPackage()) {
+        if (!isset($packages[$item->getShortName()]) && !$item->getPackage()) {
           $description = $this->t('Provide @label @type and related configuration.', array('@label' => $item->getLabel(), '@type' => Unicode::strtolower($config_types[$item->getType()])));
           if (isset($item->getData()['description'])) {
             $description .= ' ' . $item->getData()['description'];
diff --git a/src/Plugin/FeaturesAssignment/FeaturesAssignmentExclude.php b/src/Plugin/FeaturesAssignment/FeaturesAssignmentExclude.php
index 822fda8..f5b880a 100644
--- a/src/Plugin/FeaturesAssignment/FeaturesAssignmentExclude.php
+++ b/src/Plugin/FeaturesAssignment/FeaturesAssignmentExclude.php
@@ -95,7 +95,7 @@ class FeaturesAssignmentExclude extends FeaturesAssignmentMethodBase {
         if (isset($config_collection[$item_name])) {
           // Flag extension-provided configuration, which should not be added
           // to regular features but can be added to an install profile.
-          $config_collection[$item_name]['extension_provided'] = TRUE;
+          $config_collection[$item_name]->setExtensionProvided(TRUE);
         }
       }
     }