Magento 2 : declare new image id with no theme

Question

I wish to add a new image id for a custom product widget.

I know I can do this with the file view.xml in my theme but I would like to do this in the Module (app/code/vendor/module).

https://devdocs.magento.com/guides/v2.3/frontend-dev-guide/themes/theme-images.html

<images module="Magento_Catalog">
    <image id="unique_image_id" type="image_type">
    ...
    </image>
<images/>

Is it possible to do this in a module, with no theme ?

Answer 1

Yes you can.
You can create the etc/view.xml file in one of your modules and it should be picked up.
Take as example the etc/view.xml file from Magento_Swatch module.