>>4472971There are a couple parts here
1. Absolute white point/max brightness. This should be up to the user. If you want the display brighter, up the brightness. If you want it dimmer lower the brightness. Random websites should not be able to override your brightness setting.
2. Tone curve. This should come from the profile embedded in the image. If you don't like the sRGB gamma just supply your own, all the common formats allow embedded profiles.
3. Bit depth. More bits improve quality, whether it is noticeable depends on the image. JPEG supports 12-bit, PNG supports 16-bit, this is nothing new.
In summary there is no need for some Apple-specific format as all this shit has been around for decades.
