Moved from https://github.com/backdrop/backdrop-issues/issues/1399#issuecomment-204...
As per @jenlampton's comment, this might be too hasty to implement in 1.x and should be better of for 2.x. Not setting the milestone right away. Waiting for more input.
...final step: move the admin pages for modules, themes and layouts as primary tabs of the same "Extend Backdrop" page:

GitHub Issue #:
1780
Recent comments
So the implication is that another module is causing the trouble. Now for the slow process of elimination... Sounds plausible. And good luck with digging...
How to troubleshoot interactive image cropping modules?
I’ve just set up a clean install in MAMP and Focal Point works fine. *sighs So the implication is that another module is causing the trouble. Now for the slow process of elimination...
How to troubleshoot interactive image cropping modules?
Here’s the edit screen with the Focal Point instructions below: If I click on the Preview link, I get this: And no errors in the console.
How to troubleshoot interactive image cropping modules?