If you've changed the settings, but want to return to the default, that's easy too. That includes a 30 minute warm-up period to ensure accurate results.

Exact setup for the spectroradiometer will depend on which model you have, but the whole process should take up to two hours to run. Apple recommends making a baseline measurement first, before calibration, and then a second after you've adjust the settings. The actual process – as this Apple support document lays out – is fairly straightforward, though it can be time consuming. Your Pro Display XDR will need to be running the firmware v.4.2.30 or later, too. At the moment Apple supports four models: the Photo Research SpectraScan PR-740, PR-745, and PR-788, and the Colorimetry Research CR-300. Though the app is free, you'll need a spectroradiometers to plug into your macOS machine. That might be necessary, if you have a custom calibration requirement for your specific project. Though calibrated at the factory, however, the new Pro Display XDR Calibrator 1.0.0 app now supports in-field recalibration. Apple says it supports the P3 wide color gamut, with 10-bit depth for 1.073 billion colors, while it can be switched between more than ten different reference modes including HDR Video (P3-ST 2084), Digital Cinema (P3-DCI), and Design and Print (P3-D50). One of the big pitches for the monitor was its color calibration. That allows it to simultaneously supply power to a MacBook Pro while also using that same cable for data. Positioned as the perfect foil for the third-generation Mac Pro with which it shares an aesthetic, it's a 32-inch 6016 x 3384 panel Thunderbolt 3 connectivity on the rear.

Launched at the end of December 2019, the Pro Display XDR is Apple's flagship – and indeed only – standalone screen. The free app lands alongside the release of Display Firmware 4.2.30, and builds on previous versions that increased the amount of calibration tweaking that owners can do. Apple has quietly released its Pro Display XDR Calibrator App, a software tool for its Retina 6K display for those who want to do in-field recalibration of its color settings.

Mac color calibration tool 2019