Support Forum

We’re working on it right now, hopefully soon.

For now, you can find this line: https://github.com/tomusborne/wp-show-posts/blob/master/inc/functions.php#L193

And replace it with this:

the_post_thumbnail( apply_filters( 'wpsp_default_image_size', 'full', $settings ), array( 'itemprop' => 'image' ) );

Then your filter from up above would look like this:

add_filter( 'wpsp_default_image_size', function( $size, $settings ) {
    if ( 123 === $settings['list_id'] && in_array( 'featured-column', get_post_class() ) ) {
        return 'large';
    }

    return $size;
}, 10, 2 );

You just need to update 123 to the list ID of the list you’re targeting.