Add Chromium-only Blender WebEngine parity work

blender-5.2.0/scripts/freestyle/styles/curvature2d.py

@@ -0,0 +1,29 @@
+# SPDX-FileCopyrightText: 2008-2023 Blender Authors
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+#  Author   : Stephane Grabli
+#  Date     : 04/08/2005
+#  Purpose  : The stroke points are colored in gray levels and depending
+#             on the 2d curvature value
+
+from freestyle.chainingiterators import ChainSilhouetteIterator
+from freestyle.predicates import (
+    NotUP1D,
+    QuantitativeInvisibilityUP1D,
+    TrueUP1D,
+)
+from freestyle.shaders import (
+    ConstantThicknessShader,
+    py2DCurvatureColorShader,
+)
+from freestyle.types import Operators, Stroke
+
+
+Operators.select(QuantitativeInvisibilityUP1D(0))
+Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(QuantitativeInvisibilityUP1D(0)))
+shaders_list = [
+    ConstantThicknessShader(5),
+    py2DCurvatureColorShader()
+]
+Operators.create(TrueUP1D(), shaders_list)