Now your WooCommerce products that are out of stock can be distinguished from in stock products with a dyanmically applied image overlay to all product images that are out of stock. You can use the preloaded pictures included in the plugin, or upload and set your own on the plugin settings page.
スクリーンショット
Full Screenshot
Single product
Product Widget
インストール
Either upload a .zip file, or install through the WordPress.org repository.
FAQ
Installation Instructions
Either upload a .zip file, or install through the WordPress.org repository.
Thankfully, this plugin is still working (WP v.5.7); doesn’t seem to have any issues.
While there are a few alternatives, this one has the most immediate visual affect – easy to see/read at any size.
Hopefully someone can support/update this project!