usually in wordpress, there is code to check if there is a thumbnail and if there is to display that thumbnail. It would look like this
if(has_post_thumbnail()) :
the_post_thumbnail();
endif;
removing that code or commenting it out would stop the featured image from displaying. To stop the content on the homepage, you could make a custom homepage. That would be the easiest way. You would make a blank php file, call it homepage.php, at the top you would put this
/*
*
*
* Template Name: homepage
*/
then here you would need a custom loop that would look like this
$homepage_post = new WP_Query();
$homepage_post->query(array('category_name' => 'homepage' ));
while ( $homepage_post->have_posts() ) : $homepage_post->the_post(); ?>
the_post_thumbnail('full');
endif; ?>
This is a very simple loop. So then you would need to create a category called homepage, then you make a page called homepage and on the right sidebar, you would select homepage.php as your page template for that page. If you don’t want to display any text content, don’t put any text in the post and none will display, your other option is to remove the_title() and the_content(). If you do that, this query will only display the post featured image.
