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More HDR Preparations Merged In Time For GNOME 47
Following the recent Mutter 47 beta release that also marks the feature freze point for GNOME 47, there still are some High Dynamic Range (HDR) display preparations being merged ahead of this next stable desktop release due out in September.
Hitting Mutter Git today is this merge request for MetaColorDevice/Manager to track the color state of monitors and be able to apply calibrations. It takes over applying the calibration (KMS Colorspace and HDR_OUTPUT_METADATA props) and derives the resulting ClutterColorState." That code makes SDR white luminance variable rather than hard-coded and adding an HDR brightness factor.
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