Match image in the email template to the variant.

variant-images.liquid

{% comment %}
This looks for an image with the same alt text as the variant title.
You can use this if your are matching variants to images using the image ALT text.
{% endcomment %}


{% assign main_image = product.featured_image %}

{% for image in product.images %}
  {% if image.alt == variant.title %}
    {% assign main_image = image %}
  {% endif %}
{% endfor %}

Installation

1. Add this to the top of your email template.
2. Replace product.featured_image.url with main_image.url
3. Save the template.