Please have a look at the attached file
Set the Cloner Object to Black (Transform-Tab)
Then anything off in the Plain Effector, except the Parameter> Color> Color Mode
To get the separation between the colors, the MoGraph Clone Selection is used and the MG Selection Tag was dragged into the Plain Effector.
In the Material: the MoGraph Shader is used. It Produces in its current setting gray values. Black for none selected and white for selected.
To turn this into color, the Colorizer was used on “top” of the MoGraph Color Shader.
I hope that covers all needed points, if I missed one or more, please let me know.
All the best