Cacher is the code snippet organizer for pro developers

/**
 * Shows the price if it's the same (all shirts are $30)
 */

add_filter('woocommerce_show_variation_price',      function() { return TRUE;});


function my_et_builder_post_types( $post_types ) {
    $post_types[] = 'dark-t';
    $post_types[] = 'fly-t-shirt';
    $post_types[] = 'cool-t-shirt';
 
    return $post_types;
}
add_filter( 'et_builder_post_types', 'my_et_builder_post_types' );