slang-shaders/hdr/shaders/include/user_properties.h

   // User Settings
   float MaxNits;
   float PaperWhiteNits;
   float LCDResolution;
   float LCDSubpixel;
   float Contrast;
   float ExpandGamut;
   float RedConvergence;
   float GreenConvergence;
   float BlueConvergence;