diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a906403
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+
+is_themecore/vendor/
diff --git a/is_themecore/src/Core/Smarty/SmartyHelperFunctions.php b/is_themecore/src/Core/Smarty/SmartyHelperFunctions.php
index ab209ff..a28ea5f 100644
--- a/is_themecore/src/Core/Smarty/SmartyHelperFunctions.php
+++ b/is_themecore/src/Core/Smarty/SmartyHelperFunctions.php
@@ -4,6 +4,7 @@ namespace Oksydan\Module\IsThemeCore\Core\Smarty;
 
 use Oksydan\Module\IsThemeCore\Core\Webp\WebpPictureGenerator;
 use Oksydan\Module\IsThemeCore\Form\Settings\WebpConfiguration;
+use PrestaShop\PrestaShop\Core\Util\ColorBrightnessCalculator;
 
 class SmartyHelperFunctions
 {
@@ -189,4 +190,9 @@ class SmartyHelperFunctions
 
         return $content;
     }
+     public static function isBright($hexColor)
+    {
+        $calculator = new ColorBrightnessCalculator();
+        return $calculator->isBright($hexColor);
+    }
 }
diff --git a/is_themecore/src/Hook/Smarty.php b/is_themecore/src/Hook/Smarty.php
index 70796a4..7a9fc00 100644
--- a/is_themecore/src/Hook/Smarty.php
+++ b/is_themecore/src/Hook/Smarty.php
@@ -8,14 +8,53 @@ class Smarty extends AbstractHook
         'actionDispatcherBefore',
     ];
 
-    public function hookActionDispatcherBefore(): void
+public function hookActionDispatcherBefore(): void
     {
-        $this->context->smarty->registerPlugin('function', 'generateImagesSources', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'generateImagesSources']);
-        $this->context->smarty->registerPlugin('function', 'generateImageSvgPlaceholder', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'generateImageSvgPlaceholder']);
-        $this->context->smarty->registerPlugin('function', 'appendParamToUrl', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'appendParamToUrl']);
-        $this->context->smarty->registerPlugin('block', 'images_block', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'imagesBlock']);
-        $this->context->smarty->registerPlugin('block', 'cms_images_block', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'cmsImagesBlock']);
-        $this->context->smarty->registerPlugin('block', 'display_mobile', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'displayMobileBlock']);
-        $this->context->smarty->registerPlugin('block', 'display_desktop', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'displayDesktopBlock']);
+        if (!isset($this->context->smarty->registered_plugins['function']['generateImagesSources'])) {
+            $this->context->smarty->registerPlugin('function', 'generateImagesSources', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'generateImagesSources']);
+        } else {
+            return;
+        }
+        
+        if (!isset($this->context->smarty->registered_plugins['function']['generateImageSvgPlaceholder'])) {
+            $this->context->smarty->registerPlugin('function', 'generateImageSvgPlaceholder', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'generateImageSvgPlaceholder']);
+        } else {
+            return;
+        }
+        
+        if (!isset($this->context->smarty->registered_plugins['function']['appendParamToUrl'])) {
+            $this->context->smarty->registerPlugin('function', 'appendParamToUrl', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'appendParamToUrl']);
+        } else {
+            return;
+        }
+        
+        if (!isset($this->context->smarty->registered_plugins['block']['images_block'])) {
+            $this->context->smarty->registerPlugin('block', 'images_block', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'imagesBlock']);
+        } else {
+            return;
+        }
+        
+        if (!isset($this->context->smarty->registered_plugins['block']['cms_images_block'])) {
+            $this->context->smarty->registerPlugin('block', 'cms_images_block', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'cmsImagesBlock']);
+        } else {
+            return;
+        }
+        
+        if (!isset($this->context->smarty->registered_plugins['block']['display_mobile'])) {
+            $this->context->smarty->registerPlugin('block', 'display_mobile', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'displayMobileBlock']);
+        } else {
+            return;
+        }
+        
+        if (!isset($this->context->smarty->registered_plugins['block']['display_desktop'])) {
+            $this->context->smarty->registerPlugin('block', 'display_desktop', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'displayDesktopBlock']);
+        } else {
+            return;
+        }
+         if (!isset($this->context->smarty->registered_plugins['modifier']['is_bright'])) {
+            $this->context->smarty->registerPlugin('modifier', 'is_bright', ['Oksydan\Module\IsThemeCore\Core\Smarty\SmartyHelperFunctions', 'isBright']);
+        } else {
+            return;
+        }
     }
 }