I would like to change the system font (Menu Bar included) to Lucida Grande.

I have SIP disabled, and I've also disabled Library Validation.


  • Apple make it very, very difficult to do this. The security and integrity of the OS is increasingly strengthened with each new OS. If you can find a way to do this in Big Sur, the chances are that method won't work next year. If you want an OS with a customized GUI, then macOS isn't it.
    – benwiggy
    Commented Feb 17, 2021 at 18:35


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