blender-manual/manual/render/freestyle/view_layer/line_style/modifiers/thickness/along_stroke.rst

Sphinx Warnings

2: ERROR: Error in "warning" directive:
unknown option: "start-after".

.. warning:: include not available in preview:  /render/freestyle/view_layer/line_style/modifiers/color/along_stroke.rst
   :start-after: .. --- copy below this line ---

Note the preview is not accurate and warnings may not indicate real issues.