installing icc profile on built-in display ventura mac power book

You sometimes need to restart the computer before it will list a newly added profile.

While I have many years experience in color management and profile creation/editing, I have no direct experience with these new Apple displays.

Based on a different, long topic I was in some months back, they seem to function on the same principle as my EIZO monitor, where the calibration data (LUT) is stored in the monitor's hardware, rather than the on-board video or card.

That user had the same issue with a stand-alone Apple display and a newer model MacBook Pro as you are here. They could calibrate it with a separate colorimeter, but it would snap back to a preset profile, throwing out the calibration/profile they had just made.

Without being able to work with one of these to figure out how to get around this insistence of loading a preset profile, I'm afraid I can't be much help. Which is too bad, because there is no profile that will remain perfect forever for any monitor, no matter how much you pay for it. They all have to be recalibrated and profiled after at least a few months of use.

Reading your initial post again, I have to ask:

1. Why did the ColorMunki app not set the new profile as the default when it finished? That's what it should do.
2. It sounds like you made this profile on some other device, and now you want it to be the monitor profile for the PowerBook? If so, that's pointless. A profile from some other computer in no way represents the display panel on the PowerBook.

I apologize in advance for the sloppy reply. I'm on my iPad at the moment, so I kind of have to cobble an answer together.

Your options in System Settings should like something like one of these:

Either way, click on the Color profile drop down menu and select your new profile.