In https://github.com/backdrop/backdrop-issues/issues/1725, we encountered an issue where it would be desirable to load the admin theme dialog styling rather than the front-end dialog styling. Take this example of deleting a block from the front-end:

As this is an admin-action, it may make sense to have this be styled in the admin theme.
GitHub Issue #:
2659
Recent comments
Thanks, the /tmp folder was the problem. I moved it elsewhere and then the updated worked. Thanks again!
Update 1.35.1 appears to install but hasn't
Probably not the reason, but worth to do a quick check: Sometimes the update cache interferes, so if something's odd with updates - some module (or core) claims to have updated, but then...
Update 1.35.1 appears to install but hasn't
Nope, not touched any permissions!
Update 1.35.1 appears to install but hasn't