Not sure why this post is anonymous. I wish most folks would treat code quality this way!

How hard is it for a developer make this particular change?

And I mean literally observe this up close: navigating the directory structure, reading the docs, typing the code, running the app to check if everything works as expected.

Was it easy? What can change about the code, tests, docs, etc so future changes can be easier?

That's what really matters. Other measures are just proxies to the above analysis.