Implement support for None chromatic adaptation transform.

Author: KelSolaar

apps/rgb_colourspace_transformation_matrix.py

@@ -121,7 +121,10 @@ def _uid(id_):
                         H5(children="Chromatic Adaptation Transform"),
                         Dropdown(
                             id=_uid("chromatic-adaptation-transform"),
-                            options=OPTIONS_CHROMATIC_ADAPTATION_TRANSFORM,
+                            options=[
+                                *OPTIONS_CHROMATIC_ADAPTATION_TRANSFORM,
+                                {"label": "None", "value": "None"},
+                            ],
                             value=STATE_DEFAULT[
                                 "chromatic_adaptation_transform"
                             ],
@@ -271,6 +274,12 @@ def set_RGB_to_RGB_matrix_output(
         Colour transformation matrix.
     """
 
+    chromatic_adaptation_transform = (
+        None
+        if chromatic_adaptation_transform == "None"
+        else chromatic_adaptation_transform
+    )
+
     M = matrix_RGB_to_RGB(
         RGB_COLOURSPACES[input_colourspace],
         RGB_COLOURSPACES[output_colourspace],