[drodgers]

> There's no system that does that.

You mean the darkening of everything else to highlight bright HDR areas? All recent Macs do, including the one I'm typing on right now. It's a little disconcerting the first time it happens, but the effect is actually great!

[kllrnohj]

Apple doesn't darken SDR to amplify HDR. They keep SDR the same brightness as it was before HDR showed up. It appears like SDR gets dimmer because of your perception of contrast, but it's not actually within a small margin of error.