How can I remove/turn off shadows in macOS 10.14 I think this has been asked somewhere for lots of versions of OS X/macOS and it seems like it's always a different answer.

I'm trying to remove the shadows around windows and the shadow below the menu bar in macOS 10.14.  I'm not using Dark Mode.



I've tried various options from previous OS versions including Onyx and Reducing transparency in Preferences.

I'm not interested in turning off SIP.

Are there any options out there?
The previous answers in your links all involve using SIMBL -- which is a third-party app that performs a variety of system 'hacks' or extensions. That (and the absence of any known defaults write key, suggests that removing shadows is not something that Apple have provided.