Vivid — Unlock the full brightness of your MacBook Pro and Pro Display XDR

Vivid is a utility that enables the extra brightness range usually reserved for HDR content on MacBook Pro and Pro Display XDR screens, without overdriving the hardware. The article says it works the same way as editing HDR video and does not use low-level display hacks to push displays past safe limits. It quotes Apple's claim that Pro Display XDR can sustain 1000 nits across the full screen indefinitely. The article adds that macOS limits maximum brightness if a display gets too warm.