This color space has the same colorimetry as sRGB, but you can encode component values below 0.0 and above 1.0. Negative values are encoded as the signed reflection of the original encoding function, as shown in the formula below:
The recommendation of the International Telecommunication Union (ITU) Radiocommunication sector for the BT.2020 color space, with a linear transfer function and extended range values.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.