We'll create fresh WordPress site with Grey Owl Thumbnail Resize Lite installed. You have 20 minutes to test the plugin after that site we'll be deleted.
best solution for thumbnail editing
The Gray Owl Thumbnail resize plugin was specifically designed for developers and general users. the plugin allows you to conveniently edit the size and composition of thumbnails.
The plugin has a convenient editor for working with all registered thumbnail ( add_image_size() ). the editor works with three types of images (.jpg .png .gif), in the editor it is possible in some cases to change the background color, create a transparent background and many other settings.
Our team is working on appropriate additional options that will appear with subsequent updates.