How do I edit the text and appearance of the subscription details on the product page?
If you have a 2.0 theme, you can use CSS to customize the Subscription details text that appears in the subscription widget. To do this, create a new CSS asset file in your theme files and add your custom CSS there. Make sure you add a link this CSS file in your theme.liquid file under {{ content_for_header }}.
For detailed instructions, please visit this Help Center article: https://support.boldcommerce.com/hc/en-us/articles/9278596945044-Subscription-Policies-for-Subscriptions-for-Shopify-Checkout