diff -u b/config/install/paragraphs.paragraphs_type.container.yml b/config/install/paragraphs.paragraphs_type.container.yml
--- b/config/install/paragraphs.paragraphs_type.container.yml
+++ b/config/install/paragraphs.paragraphs_type.container.yml
@@ -12,6 +11,0 @@
-behavior_plugins:
-  style:
-    enabled: true
-    groups:
-      general_group:
-        default: ''
diff -u b/modules/paragraphs_collection_demo/paragraphs_collection_demo.paragraphs.style.yml b/modules/paragraphs_collection_demo/paragraphs_collection_demo.paragraphs.style.yml
--- b/modules/paragraphs_collection_demo/paragraphs_collection_demo.paragraphs.style.yml
+++ b/modules/paragraphs_collection_demo/paragraphs_collection_demo.paragraphs.style.yml
@@ -3,26 +3,26 @@
   description: 'Green background with white font color, text centered.'
   groups:
-    - 'general_group'
+    - general_group
   libraries:
     - 'paragraphs_collection_demo/style'
 paragraphs-blue:
   title: 'Blue'
   description: 'Blue background with white font color, text centered.'
   groups:
-    - 'general_group'
+    - general_group
   libraries:
     - 'paragraphs_collection_demo/style'
 paragraphs-slideshow-light:
   title: 'Slideshow Light'
   description: 'Light blue background with centered text.'
   groups:
-    - 'slideshow_group'
+    - slideshow_group
   libraries:
     - 'paragraphs_collection_demo/style'
 paragraphs-slideshow-dark:
   title: 'Slideshow Dark'
   description: 'Dark blue background with centered text.'
   groups:
-    - 'slideshow_group'
+    - slideshow_group
   libraries:
     - 'paragraphs_collection_demo/style'
diff -u b/modules/paragraphs_collection_test/paragraphs_collection_test.paragraphs.style.yml b/modules/paragraphs_collection_test/paragraphs_collection_test.paragraphs.style.yml
--- b/modules/paragraphs_collection_test/paragraphs_collection_test.paragraphs.style.yml
+++ b/modules/paragraphs_collection_test/paragraphs_collection_test.paragraphs.style.yml
@@ -2,7 +2,7 @@
   title: 'Regular'
   description: 'Default style.'
   groups:
-    - 'regular_test_group'
+    - regular_test_group
   libraries:
     - 'paragraphs_collection_test/style'
   classes:
@@ -14,22 +14,22 @@
   description: 'Bold text.'
   groups:
-    - 'bold_test_group'
-    - 'italic_test_group'
-    - 'underline_test_group'
-    - 'regular_test_group'
+    - bold_test_group
+    - italic_test_group
+    - underline_test_group
+    - regular_test_group
   libraries:
     - 'paragraphs_collection_test/style'
 italic:
   title: 'Italic'
   description: 'Italic text.'
   groups:
-    - 'italic_test_group'
+    - italic_test_group
   libraries:
     - 'paragraphs_collection_test/style'
 underline:
   title: 'Underline'
   description: 'Underlined text.'
   groups:
-    - 'underline_test_group'
+    - underline_test_group
   libraries:
     - 'paragraphs_collection_test/style'
diff -u b/paragraphs_collection.install b/paragraphs_collection.install
--- b/paragraphs_collection.install
+++ b/paragraphs_collection.install
@@ -20,15 +20,16 @@
  * Update style plugin config of Paragraph types.
  */
 function paragraphs_collection_update_8002() {
-  $paragraph_types = ParagraphsType::loadMultiple();
-  foreach ($paragraph_types as $id => $paragraph_type) {
+  $config_factory = \Drupal::configFactory();
+  foreach ($config_factory->listAll('paragraphs.paragraph_type.') as $name) {
+    $paragraph_type = $config_factory->getEditable($name);
     /** @var ParagraphsType $paragraph_type */
     if ($paragraph_type->hasEnabledBehaviorPlugin('style')) {
       $default = '';
       // Get the old configuration.
       if ($group = $paragraph_type->getBehaviorPlugin('style')->getConfiguration()['group']) {
         $default_style = $paragraph_type->getBehaviorPlugin('style')->getConfiguration()['default'];
-        $group_id = \Drupal::service('paragraphs_collection.style_group_discovery')->getGroupId($group);
+        $group_id = strtolower(str_replace(' ', '_', $group));
         if ($style = \Drupal::service('paragraphs_collection.style_discovery')->getStyle($default_style)) {
           if (in_array($group_id, $style['groups'])) {
             $default = $default_style;
reverted:
--- b/paragraphs_collection.services.yml
+++ a/paragraphs_collection.services.yml
@@ -2,9 +2,6 @@
   paragraphs_collection.style_discovery:
     class: \Drupal\paragraphs_collection\StyleDiscovery
     arguments: ['@module_handler', '@string_translation', '@controller_resolver', '@cache.discovery', '@theme_handler', '@config.factory']
-  paragraphs_collection.style_group_discovery:
-    class: \Drupal\paragraphs_collection\StyleGroupDiscovery
-    arguments: ['@module_handler', '@string_translation', '@controller_resolver', '@cache.discovery', '@theme_handler', '@config.factory']
   paragraphs_collection.grid_layout_discovery:
     class: \Drupal\paragraphs_collection\GridLayoutDiscovery
     arguments: ['@module_handler', '@cache.discovery', '@theme_handler']
diff -u b/src/Plugin/paragraphs/Behavior/ParagraphsStylePlugin.php b/src/Plugin/paragraphs/Behavior/ParagraphsStylePlugin.php
--- b/src/Plugin/paragraphs/Behavior/ParagraphsStylePlugin.php
+++ b/src/Plugin/paragraphs/Behavior/ParagraphsStylePlugin.php
@@ -13,7 +13,6 @@
 use Drupal\paragraphs\ParagraphInterface;
 use Drupal\paragraphs\ParagraphsBehaviorBase;
 use Drupal\paragraphs_collection\StyleDiscoveryInterface;
-use Drupal\paragraphs_collection\StyleGroupDiscoveryInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -37,13 +36,6 @@
     */
    protected $yamlStyleDiscovery;
 
-  /**
-   * The yaml style group discovery.
-   *
-   * @var \Drupal\paragraphs_collection\StyleGroupDiscovery
-   */
-  protected $yamlStyleGroupDiscovery;
-
    /**
     * Constructs a new SelectionBase object.
     *
@@ -57,13 +49,10 @@
     *   The entity field manager.
     * @param \Drupal\paragraphs_collection\StyleDiscoveryInterface $yaml
     *   The yaml style discovery.
-    * @param \Drupal\paragraphs_collection\StyleGroupDiscoveryInterface $style_group_discovery
-    *   The yaml style group discovery.
     */
-   public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityFieldManager $entity_field_manager, StyleDiscoveryInterface $yaml, StyleGroupDiscoveryInterface $style_group_discovery) {
+   public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityFieldManager $entity_field_manager, StyleDiscoveryInterface $yaml) {
      parent::__construct($configuration, $plugin_id, $plugin_definition, $entity_field_manager);
      $this->yamlStyleDiscovery = $yaml;
-     $this->yamlStyleGroupDiscovery = $style_group_discovery;
    }
 
    /**
@@ -72,8 +61,7 @@
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
      return new static($configuration, $plugin_id, $plugin_definition,
        $container->get('entity_field.manager'),
-       $container->get('paragraphs_collection.style_discovery'),
-       $container->get('paragraphs_collection.style_group_discovery')
+       $container->get('paragraphs_collection.style_discovery')
      );
    }
 
@@ -100,7 +88,7 @@
       //debug($this->yamlStyleDiscovery->getStyleOptions());
       $form['style_wrapper']['styles'][$group_id] = [
         '#type' => 'select',
-        '#title' => $this->t('%group Style', ['%group' => $this->yamlStyleGroupDiscovery->getGroupLabel($group_id)]),
+        '#title' => $this->t('%group Style', ['%group' => $this->yamlStyleDiscovery->getGroupLabel($group_id)]),
         '#options' => $this->getStyleOptions($group_id, $plugin_default),
         '#default_value' => $paragraph->getBehaviorSetting($this->getPluginId(), $group_id, $this->configuration['groups'][$group_id]['default']),
         '#attributes' => ['class' => ['paragraphs-style']],
@@ -151,7 +139,7 @@
       '#type' => 'select',
       '#title' => $this->t('Style groups'),
       '#multiple' => TRUE,
-      '#options' => $this->yamlStyleGroupDiscovery->getStyleGroups(),
+      '#options' => $this->yamlStyleDiscovery->getStyleGroups(),
       '#description' => $this->t('Restrict available styles to a certain style group. Select none to allow all styles.'),
       '#default_value' => array_keys($this->configuration['groups']),
       '#ajax' => [
@@ -173,7 +161,7 @@
       if (!empty($this->configuration['groups'][$group_id]['default'])) {
         $default = $this->configuration['groups'][$group_id]['default'];
       }
-      $group_label = $this->yamlStyleGroupDiscovery->getGroupLabel($group_id);
+      $group_label = $this->yamlStyleDiscovery->getGroupLabel($group_id);
       $form['groups_defaults'][$group_id]['default'] = [
         '#type' => 'select',
         '#title' => $this->t($group_label . ' default style'),
@@ -205,6 +193,9 @@
     if (empty($this->yamlStyleDiscovery->getStyleGroups())) {
       $form_state->setErrorByName('message', $this->t('There is no style group available, the style plugin can not be enabled.'));
     }
+    if (!$form_state->getValue('groups')) {
+      $form_state->setErrorByName('groups', $this->t('The style plugin cannot be enabled if no groups are selected.'));
+    }
   }
 
   /**
@@ -260,7 +251,7 @@
       foreach ($styles as $group_id => $style) {
         if (!isset($this->configuration['groups'][$group_id]) || $style != $this->configuration['groups'][$group_id]['default']) {
           $summary[] = $this->t('@group: @style', [
-            '@group' => $this->yamlStyleGroupDiscovery->getGroupLabel($group_id),
+            '@group' => $this->yamlStyleDiscovery->getGroupLabel($group_id),
             '@style' => $style_options[$style]
           ]);
         }
diff -u b/src/StyleDiscovery.php b/src/StyleDiscovery.php
--- b/src/StyleDiscovery.php
+++ b/src/StyleDiscovery.php
@@ -163,41 +163,69 @@
   }
 
   /**
+   * Gets the YAML discovery.
+   *
+   * @return \Drupal\Core\Discovery\YamlDiscovery
+   *   The YAML discovery.
+   */
+  protected function getYamlDiscovery() {
+    return new YamlDiscovery('paragraphs.style', $this->moduleHandler->getModuleDirectories() + $this->themeHandler->getThemeDirectories());
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getLibraries($style) {
+    $collection = $this->getStyles();
+    return $collection[$style]['libraries'];
+  }
+
+  /**
    * {@inheritdoc}
    */
   public function getStyleGroups() {
+    $cache_id = 'paragraphs_collection_style_group';
     if ($this->groupCollection !== NULL) {
       return $this->groupCollection;
     }
-    else if (!empty($styles = $this->getStyles())) {
-      foreach ($styles as $style => $definition) {
-        foreach ($definition['groups'] as $group) {
-          $this->groupCollection[$group] = $group;
-        }
-      }
+    else if ($cached = $this->cache->get($cache_id)) {
+      $this->groupCollection = $cached->data;
     }
     else {
+      $yaml_discovery = $this->getYamlGroupDiscovery();
       $this->groupCollection = [];
+      foreach ($yaml_discovery->findAll() as $module => $groups) {
+        foreach ($groups as $group => $definition) {
+          if (empty($definition['label'])) {
+            throw new InvalidStyleException('The "label" of "' . $group . '" must be non-empty.');
+          }
+          $this->groupCollection[$group] = $this->t($definition['label']);
+        }
+      }
+      $this->cache->set($cache_id, $this->groupCollection);
     }
     return $this->groupCollection;
   }
 
   /**
-   * Gets the YAML discovery.
-   *
-   * @return \Drupal\Core\Discovery\YamlDiscovery
-   *   The YAML discovery.
+   * {@inheritdoc}
    */
-  protected function getYamlDiscovery() {
-    return new YamlDiscovery('paragraphs.style', $this->moduleHandler->getModuleDirectories() + $this->themeHandler->getThemeDirectories());
+  public function getGroupLabel($group_id) {
+    $groups = $this->getStyleGroups();
+    if (in_array($group_id, array_keys($groups))) {
+      return $groups[$group_id];
+    }
+    return NULL;
   }
 
   /**
-   * {@inheritdoc}
+   * Gets the YAML group discovery.
+   *
+   * @return \Drupal\Core\Discovery\YamlDiscovery
+   *   The YAML discovery.
    */
-  public function getLibraries($style) {
-    $collection = $this->getStyles();
-    return $collection[$style]['libraries'];
+  protected function getYamlGroupDiscovery() {
+    return new YamlDiscovery('paragraphs.style_group', $this->moduleHandler->getModuleDirectories() + $this->themeHandler->getThemeDirectories());
   }
 
 }
diff -u b/src/StyleGroupDiscovery.php b/src/StyleDiscovery.php
--- b/src/StyleGroupDiscovery.php
+++ b/src/StyleDiscovery.php
@@ -12,13 +12,21 @@
 use Drupal\Core\StringTranslation\TranslationInterface;
 
 /**
- * Provides common helper methods for style group discovery.
+ * Provides common helper methods for style discovery.
+ * @todo Create documentation for style discovery https://www.drupal.org/node/2837995
  */
-class StyleGroupDiscovery implements StyleGroupDiscoveryInterface {
+class StyleDiscovery implements StyleDiscoveryInterface {
 
   use StringTranslationTrait;
 
   /**
+   * Collection of styles with its definition.
+   *
+   * @var array
+   */
+  protected $stylesCollection;
+
+  /**
    * Collection of style groups with their definition.
    *
    * @var array
@@ -88,6 +96,93 @@
   /**
    * {@inheritdoc}
    */
+  public function getStyleOptions($group = '') {
+    $options = [];
+    $style_collection = $this->getStyles();
+    $enabled_styles = $this->configFactory->get('paragraphs_collection.settings')->get('enabled_styles');
+    foreach ($style_collection as $style => $definition) {
+      if (empty($enabled_styles) || in_array($style, $enabled_styles)) {
+        if (empty($group) || in_array($group, $definition['groups'])) {
+          $options[$style] = $definition['title'];
+        }
+      }
+    };
+    uasort($options, 'strcasecmp');
+    return $options;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getStyles() {
+    $cache_id = 'paragraphs_collection_style';
+    if ($this->stylesCollection !== NULL) {
+      return $this->stylesCollection;
+    }
+    else if ($cached = $this->cache->get($cache_id)) {
+      $this->stylesCollection = $cached->data;
+    }
+    else {
+      $yaml_discovery = $this->getYamlDiscovery();
+      $this->stylesCollection = [];
+      foreach ($yaml_discovery->findAll() as $module => $styles) {
+        foreach ($styles as $style => $definition) {
+          if (empty($definition['title'])) {
+            throw new InvalidStyleException('The "title" of "' . $style . '" must be non-empty.');
+          }
+          $definition['title'] = $this->t($definition['title']);
+          if (!empty($definition['description'])) {
+            $definition['description'] = $this->t($definition['description']);
+          }
+          $this->stylesCollection[$style] = ['name' => $style];
+          $this->stylesCollection[$style] += $definition + ['libraries' => []];
+        }
+      }
+      $this->cache->set($cache_id, $this->stylesCollection);
+    }
+    return $this->stylesCollection;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getStyle($style, $default = NULL) {
+    $styles = $this->getStyles();
+    $enabled_styles = $this->configFactory->get('paragraphs_collection.settings')->get('enabled_styles');
+    if (empty($enabled_styles) || in_array($style, $enabled_styles)) {
+      if (isset($styles[$style])) {
+        return $styles[$style];
+      }
+
+      if ($default && isset($styles[$default])) {
+        return $styles[$default];
+      }
+    }
+
+    return NULL;
+  }
+
+  /**
+   * Gets the YAML discovery.
+   *
+   * @return \Drupal\Core\Discovery\YamlDiscovery
+   *   The YAML discovery.
+   */
+  protected function getYamlDiscovery() {
+    return new YamlDiscovery('paragraphs.style', $this->moduleHandler->getModuleDirectories() + $this->themeHandler->getThemeDirectories());
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getLibraries($style) {
+    $collection = $this->getStyles();
+    return $collection[$style]['libraries'];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public function getStyleGroups() {
     $cache_id = 'paragraphs_collection_style_group';
     if ($this->groupCollection !== NULL) {
@@ -97,7 +192,7 @@
       $this->groupCollection = $cached->data;
     }
     else {
-      $yaml_discovery = $this->getYamlDiscovery();
+      $yaml_discovery = $this->getYamlGroupDiscovery();
       $this->groupCollection = [];
       foreach ($yaml_discovery->findAll() as $module => $groups) {
         foreach ($groups as $group => $definition) {
@@ -124,19 +219,12 @@
   }
 
   /**
-   * {@inheritdoc}
-   */
-  public function getGroupId($group_label) {
-    return strtolower(str_replace(' ', '_', $group_label));
-  }
-
-  /**
-   * Gets the YAML discovery.
+   * Gets the YAML group discovery.
    *
    * @return \Drupal\Core\Discovery\YamlDiscovery
    *   The YAML discovery.
    */
-  protected function getYamlDiscovery() {
+  protected function getYamlGroupDiscovery() {
     return new YamlDiscovery('paragraphs.style_group', $this->moduleHandler->getModuleDirectories() + $this->themeHandler->getThemeDirectories());
   }
 
reverted:
--- b/src/StyleGroupDiscoveryInterface.php
+++ /dev/null
@@ -1,42 +0,0 @@
-<?php
-
-namespace Drupal\paragraphs_collection;
-
-/**
- * Provides discovery for a YAML style files in specific directories.
- *
- * @package Drupal\paragraphs_collection
- */
-interface StyleGroupDiscoveryInterface {
-
-  /**
-   * Gets style groups.
-   *
-   * @return array
-   *    Collection of style groups.
-   */
-  public function getStyleGroups();
-
-  /**
-   * Gets group label.
-   *
-   * @param string $group_id
-   *   The group id.
-   *
-   * @return string
-   *   The translatable group label.
-   */
-  public function getGroupLabel($group_id);
-
-  /**
-   * Gets group label.
-   *
-   * @param string $group_label
-   *   The group label.
-   *
-   * @return string
-   *   The group id.
-   */
-  public function getGroupId($group_label);
-
-}
only in patch2:
unchanged:
--- a/src/StyleDiscoveryInterface.php
+++ b/src/StyleDiscoveryInterface.php
@@ -61,4 +61,15 @@ interface StyleDiscoveryInterface {
    */
   public function getStyle($style, $default = NULL);
 
+  /**
+   * Gets group label.
+   *
+   * @param string $group_id
+   *   The group id.
+   *
+   * @return string
+   *   The translatable group label.
+   */
+  public function getGroupLabel($group_id);
+
 }