Call the reference curve what it is, and drop wording that reads as copying

The view transform's second curve is the DNG SDK's published reference
rendering — the ACR3 default curve applied by RefBaselineRGBTone — so
it is the "DNG Reference" curve in the panel, D21 and the code, not a
name borrowed from another product. Comments and docs that justified a
choice by another editor doing it ("as their Amount", "so a
photographer arriving from it finds the name") now give the actual
reason. The Vivid presets no longer describe themselves as reaching
for another editor's look; they are DarkRoom's own.

Factual mentions stay: which program wrote the library's DNGs, what
was measured against, and preset import. camera-profiles.md gains §15,
on starting a photograph from the edit it already carries.

ui/dr-ui/src/labels.rs

@@ -213,9 +213,8 @@ fn catalogued(key: &str) -> Option<&'static str> {
         // the pipeline, and the photographer is choosing how the scene's range
         // is fitted onto the screen.
         "op.view_transform" => "Tone Mapping",
-        // The DNG camera profile's tables (D20). "Camera Profile", as Camera
-        // Raw calls the same thing, so a photographer arriving from Lightroom
-        // finds it under the name they know.
+        // The DNG camera profile's tables (D20). "Camera Profile", the DNG
+        // specification's own name for what the file carries.
         "op.camera_profile" => "Camera Profile",
 
         // Parameters
@@ -226,15 +225,15 @@ fn catalogued(key: &str) -> Option<&'static str> {
         "param.learned_denoise.apply" => "Apply",
         "param.learned_denoise.grain" => "Keep grain",
         "param.camera_profile.apply" => "Use Profile",
-        // The LookTable's strength, as Lightroom's profile "Amount".
+        // The LookTable's strength.
         "param.camera_profile.look" => "Look Amount",
         "param.view_transform.contrast" => "Contrast",
         // In stops above middle grey: where the scene reaches display white.
         "param.view_transform.white" => "White Point",
-        // The view transform's curve (D21): Camera Raw's tone, as Lightroom
-        // renders a raw, or D19's sigmoid with its highlight shoulder.
+        // The view transform's curve (D21): the DNG SDK's reference
+        // rendering, or D19's sigmoid with its highlight shoulder.
         "param.view_transform.curve" => "Curve",
-        "param.view_transform.curve.camera_raw" => "Camera Raw",
+        "param.view_transform.curve.camera_raw" => "DNG Reference",
         "param.view_transform.curve.sigmoid" => "Sigmoid",
         "param.temperature" => "Temperature",
         "param.tint" => "Tint",