Today (March 4, 2020), I compared the Rigify official documentation for the following Blender versions :
A) 2.79 (https://wiki.blender.jp/Extensions:2.6/Py/Scripts/Rigging/Rigify),
B) 2.82 (https://docs.blender.org/manual/en/latest/addons/rigging/rigify/index.html?highlight=rigify)
C) and 2.83 (https://docs.blender.org/manual/en/dev/addons/rigging/rigify/index.html?highlight=rigify)
These Rigify official documentations are exactly the same for Blender 2.82 and 2.83, and they are missing all the images, compared to version 2.79.
Question : Are all the images in https://wiki.blender.jp/Extensions:2.6/Py/Scripts/Rigging/Rigify valid for Blender 2.82 and 2.83 ?