We've updated both the Email Reports and WooCommerce Importer apps to use Shopify’s latest UI library, Shopify Web Components.
These apps were previously using a React-based Polaris component library. They've now been updated to use Shopify’s official Web Components, bringing them in line with Shopify's current frontend standards and providing a more consistent experience inside the admin.
There should be no functional changes as part of this update however if you notice any UI issues or anything that doesn’t look quite right, please let us know and we'll get it fixed.