Blurry thumbnail image in post

[Attila]

Thumbnail/Feature images are displayed clearly, but when entering a single post page the thumbnail is blurry. I looked into it and saw that single.php was updated after this question: tweak: single post header picture wrong

The old template to display the thumbnail looks like :

<?php 
    	$is_photo = '';
    	$style = '';
        $id = get_post_thumbnail_id($post->ID); 
        $style = 'style="background-image: url('.wp_get_attachment_url($id).')"';
        $is_photo = 'data-photo="yes"';
?>

When I use the old version the thumbnail images in a single post page is no longer blurry. Is there an issue with the updated version, or am I missing something?

[Anonymous]

Hi @atcom
Size parameter is not included at present, it’s the same codes as we had earlier just little more organized.
We have not added small or media option to keep original image used

 $style = ( has_post_thumbnail() && boss_get_option( 'boss_cover_blog' ) ) ? 'style="background-image: url(' . get_the_post_thumbnail_url( $post ) . '); background-position: center;background-size: cover;background-repeat: none;" data-photo="yes"' : '';

If previous version of codes if working fine for you you can keep the single.php from older version to child theme folder.

Regards