Custom image sizes are not showing

Here are two more screenshots from my actual website:

See the settings page: I added the following code to ManualImageCropSettingsPage.php to show the registered sizes below the form

<h4>Registered Images Sizes</h4>
<?php
echo '<pre>';
global $_wp_additional_image_sizes;
print_r( $_wp_additional_image_sizes );
echo '</pre>';
?>

Screenshot one

Here you can see that the cropping is not working as ewxpeted either, It only shows the standard WP 150 x 150 Thumbnail.
Screenshot two

I think that the idea of your plugin is fantastic, a real time saver when it comes to featured images or galleries. But I could not get it to work properly.

Hi sixtyseven,

plugin supports only ‘hard crop’ image sizes.

In your case you would need to register the size this way:
add_image_size( ‘slider’, 680, 350, true );