Save color correctly in background image

Author: raumatbel

app/code/Magento/Catalog/Model/ImageExtractor.php

@@ -5,10 +5,11 @@
  */
 namespace Magento\Catalog\Model;
 
-use Magento\Catalog\Model\Product\Attribute\Backend\Media\ImageEntryConverter;
 use Magento\Catalog\Helper\Image;
+use Magento\Catalog\Model\Product\Attribute\Backend\Media\ImageEntryConverter;
+use Magento\Framework\View\Xsd\Media\TypeDataExtractorInterface;
 
-class ImageExtractor implements \Magento\Framework\View\Xsd\Media\TypeDataExtractorInterface
+class ImageExtractor implements TypeDataExtractorInterface
 {
     /**
      * Extract configuration data of images from the DOM structure
@@ -55,6 +56,7 @@ private function processImageBackground($backgroundString)
         $backgroundArray = [];
         if (preg_match($pattern, $backgroundString, $backgroundArray)) {
             array_shift($backgroundArray);
+            $backgroundArray = array_map('intval', $backgroundArray);
         }
         return $backgroundArray;
     }