Network Latest Posts placeholders blocks, change URL addresses at will.

nlp-placeholders.php

<?php
/**
 * This block is found in lines: 630 to 654
 * and 848 to 872 from network-latest-posts.php file.
 */
// Put a placeholder with the post title
switch($thumbnail_filler) {
    // Placeholder provided by Placehold.it
    case 'placeholder':
        echo "<a href='".$all_permalinks[$field->guid]."'><img src='http://placehold.it/".$thumbnail_wh."&text=".$field->post_title."' alt='".$field->post_title."' title='".$field->post_title."' /></a>";
        break;
    // Just for fun Kittens thanks to PlaceKitten
    case 'kittens':
        echo "<a href='".$all_permalinks[$field->guid]."'><img src='http://placekitten.com/".$thumbnail_size[0]."/".$thumbnail_size[1]."' alt='".$field->post_title."' title='".$field->post_title."' /></a>";
        break;
    // More fun Puppies thanks to PlaceDog
    case 'puppies':
        echo "<a href='".$all_permalinks[$field->guid]."'><img src='http://placedog.com/".$thumbnail_size[0]."/".$thumbnail_size[1]."' alt='".$field->post_title."' title='".$field->post_title."' /></a>";
        break;
    case 'custom':
        if( !empty( $thumbnail_url ) ) {
            echo "<a href='".$all_permalinks[$field->guid]."'><img src='".$thumbnail_url."' alt='".$field->post_title."' title='".$field->post_title."' width='".$thumbnail_size[0]."' height='".$thumbnail_size[1]."' /></a>";
        } else {
            echo "<a href='".$all_permalinks[$field->guid]."'><img src='http://placehold.it/".$thumbnail_wh."&text=".$field->post_title."' alt='".$field->post_title."' title='".$field->post_title."' /></a>";
        }
        break;
    // Boring by default ;)
    default:
        echo "<a href='".$all_permalinks[$field->guid]."'><img src='http://placehold.it/".$thumbnail_wh."&text=".$field->post_title."' alt='".$field->post_title."' title='".$field->post_title."' /></a>";
        break;
}
?>