Over on the Collabora blog, Pekka Paalanen writes
about adding color management and high dynamic range (HDR) support to the
Wayland display server
protocol. X11 already has support for color management tools and workflow, but not HDR, and
Wayland currently doesn’t support either, but Paalanen and others are working
to change that. “As color management is all about color spaces and
gamuts, and high dynamic range (HDR) is also very much about color spaces
and gamuts plus extended luminance range, Sebastian [Wick] and I decided that
Wayland color management extension should cater for both from the
beginning. Combining traditional color management and HDR is a fairly new
thing as far as I know, and I’m not sure we have much prior art to base
upon, so this is an interesting research journey as well. There is a lot of
prior art on HDR and color management separately, but they tend to have
fundamental differences that makes the combination not obvious.“

Source: LWN.net – Paalanen: Developing Wayland Color Management and High Dynamic Range