cmm: enable using the display primaries in SDR mode

toml-spec/spec/spec.yaml

@@ -2069,6 +2069,26 @@ Output:
         The blend space of the output.
         
         The default is `srgb`.
+    use-native-gamut:
+      kind: boolean
+      required: false
+      description: |
+        Configures whether the display primaries are used.
+        
+        By default, Jay pretends that the display uses sRGB primaries. This is also how
+        most other systems behave. In reality, most displays use a much larger gamut. For
+        example, they advertise that they support 95% of the DCI-P3 gamut. If the display
+        is interpreting colors in their native gamut, then colors will appear more
+        saturated than their specification.
+        
+        If this is set to `true`, Jay assumes that the display uses the primaries
+        advertised in its EDID. This might produce more accurate colors while also
+        allowing color-managed applications to use the full gamut of the display.
+        
+        This setting has no effect when the display is explicitly operating in a wide
+        color space.
+        
+        The default is `false`.
 
 
 Transform: