Debug formatter tweaks

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | no
| Applies to    | 2.6+
| Fixed tickets | n/a

Hi guys!

This follows with a few tweaks to #4485. The biggest was adding an image of the output early on, which helped me understand "what the heck does this debug formatter actually do?".

Thanks!
Yes, we now want to order them on relevance and, while this is a great helper, it won't be used that much. (the rest of the order should be changed in another PR based on the 2.3 branch).