You can easily create html email templates for yourself by dragging and dropping the element which the email templates builder supported. You can also change the font size, font colours and upload your images for email. You can see many samples of email templates if you search on Google with keyword "Email Marketing Templates" then you can use this zen cart plugin to create the same or adjust them.

From eCommerce templates to wedding invitations, confirmation emails, event management & event planners, email notifications, price tags, portfolio emails, wedding cards, product showcase, image gallery, sales and many more… Email Templates Builder For Zen Cart includes everything you'll ever going to need…

The common features:

• Drag and drop element.
• Change font, colour and adjust position if want.
• Easy to control all of the features by users. No code required.

If you don't know how to create a beautiful email template html, watch this video https://www.youtube.com/watch?v=Y5ye9syaL84