This started with the electricity going out and I had to nurse my 2012 iMac back with safe reboot, then reboot, run some disk utils. Finally, I rebooted and it asked to update te OS. I thought, a minor update should be OK.
It updated from 10.12 to 10.15 Catalina.
Opened FCPX and it said update was required, updated to 10.4.7
OK, now the events/projects open but when I select any dropdown - File, Edit, Trim, etc it displays in pink with red illegible letters. Is it a compatibility issue with the graphics card? NVIDIA GeForce GTX 660M 512 MB
Upgrading the OS is never minor. Especially the major changes Catalina brings. Never upgrade the OS mid-project, ever. But yeah, known issue, what Tom said should work. System Preferences > Accessabilty > Display.