Hey Graham,
How are you doing today?
Would you mind posting link to your site/gallery page where I can see this so I can take a look?
Cheers,
Bojan
Thread Starter
gubu
(@gubu)
Hey Graham,
The easy way of doing this would be to edit the current thumbnail size in your theme functions.php. Proper way of doing this would be to create a child theme and overriding it there.
With above being said you can go to your theme funcitons.php which is located in the root folder of your theme and go to line 31 which looks like this:
add_image_size( 'serene-featured-image', 1280, 540, true );
Replace that line with this one
add_image_size( 'serene-featured-image', 1280, auto, false );
Please note that this will increase the height of those images. Also in order for this to work you’ll have to install this plugin https://wordpress.org/plugins/regenerate-thumbnails/ and regenerate thumbnails after you make the changes in functions.php.
Hope this helps and have a great day 🙂
Cheers,
Bojan