Magento 2.3.4: How to customize the default email template?

Question

The Share button on the product view page allows the customer to share the link to the product by email. I would like to customize the email template being used by this feature as seen in screenshot below. How do I go about replacing LUMA at the top with my store name?

Answer 1

Since I only needed to replace the LUMA logo with that of my store in the emails triggered by Shared button, I could do it under Content->Custom Theme> Transactional Emails as seen in the screenshot below.