I'm trying to add a new custom image attribute for category, following the guide here "https://webkul.com/blog/add-custom-image-attribute-category-magento-2/comment-page-1/#comment-16835"
However, after I added these files under
php bin/magento setup:di:compile php bin/magento setup:upgrade php bin/magento c:c c:f
but nothing shows up, and I cannot find the module on the list. Please help