> I'll basically repeat my comment from below, but ergonomically set up displays meet ambient brightness, but don't exceed it (much). This is true in a world w

> I'll basically repeat my comment from below, but ergonomically set up displays meet ambient brightness, but don't exceed it (much). This is true in a world where many UI backgrounds are close to "white", i.e. maximum brightness. That in itself is an unfortunate situation (though driven in part by the technical limitations of display technology until now) because there are plenty of cases where you actually do want the ability to display above ambient brightness, just not for what is meant to be a neutral background. HDR displays are designed for high peak brightness and shine with photorealistic content - pun intended. Content such as games, video, photos all have in common that their colour/brightness histograms are much less skewed towards the extremes than typical UIs which are dominated by large uniform, mostly bright areas. Those should be limited to ambient brightness, and ideally on a true brightness plane, not clipped to the faces of an RGB cube.