Jesper van Engelen

Enhance your admin overview screens by displaying icons instead of text labels in the table header and footer.
The Icons Add-on for Admin Columns adds functionality for displaying icons on the posts, users, media and comment overview screens, and any other screens Admin Columns Supports. It supports all column types that have a label! You can choose to select one of WordPress’ native <a href="https://developer.wordpress.org/resource/dashicons/" rel="nofollow ugc">Dashicons</a>, upload a new icon image, select an icon from your media library and choose a custom URL to retrieve the icon from.
<blockquote>
This plugin is an add-on for <a href="https://wordpress.org/plugins/codepress-admin-columns/" rel="ugc">Admin Columns</a>.
</blockquote>

Admin Columns – Icons Add-on

Use icons instead of text labels in column headers on post, user, media and other admin pages. Extension for Admin Columns.

Automattic

Claudio Sanches

Peter Fabian

This plugin adds a “product type” column (with icons) on the products admin screen in WooCommerce which was removed in version 3.4.0 as a result of feedback in <a href="https://woocommerce.wordpress.com/2018/02/28/what-should-happen-to-the-product-type-column-on-the-admin-products-screen/" rel="nofollow ugc">this post</a>.
If you’d like the column back, simply install and activate this plugin and you’re set.
<h4>Requirements</h4>
<ul>
<li>WooCommerce 3.4 or later.</li>
<li>WordPress 4.7 or later.</li>
<li>PHP 5.2 or later.</li>
</ul>

WooCommerce Product Type Column

Didn't realise there was a poll about this column and thought it was gone for good.

I came across it when i got fed up not having it and tried to find a solution to restore it.

Based on number of active installs, i'd imagine only a few people know about this plugin and WooCommmerce should probably notify people who have bought Composite Products, Bundled Products or Subscriptions as i suspect they will be the ones who need it most.

I agree it might not be the prettiest solution and hope it will be improved in the new admin, but for now it works well for businesses that have more than one product types, especially if they have a lot of products.

Please don't abandon this code.

Useful plugin

Displays a "product type" column (with icons) on the products admin screen in WooCommerce.

Admin Columns – Icons Add-on vs WooCommerce Product Type Column