Is possible to set up different default images for different CPTs?

Hi gfdesign,

It’s a conscious choice, I didn’t want to complicate the UI.
It can be done I have more examples in the FAQ.

function dfi_posttype_book ( $dfi_id, $post_id ) {
  $post = get_post($post_id);
  if ( 'wiki' === $post->post_type ) {
    return 31; // the image id
  }
  return $dfi_id; // the original featured image id
}
add_filter( 'dfi_thumbnail_id', 'dfi_posttype_book', 10, 2 );

This example will set a different image ID for the wiki posttype.

Let me know if you need more help!

@janwoostendorp Thanks so much for your code.
This works as expected.
Please, consider to add my suggestion in future versions.
I’ve left my five stars review.
Regards from Argentina