I test this custom field with WP All Import, it’s working!
I have thumbs of diff sizes (masonry layout) and this plugin is automatically cover 400x400px for all thumbs. I need to keep them diff (as original).
Setting css background-size:contain is aligning middle the thumb but leaving a lot of blank up and down – see screenshot:
https://artmediastock.com/wp-content/uploads/Capture2.png
I tried with img.nelioefi as well, weird results.
Could you please guide me what to do to have diff heights of thumbs according to original thumbs and keeping aspect ratio?
Thank you!