I would like to plot a molecule in 3D and use different colors for the same atom type in the molecule. For example, by using:
MoleculePlot3D[Molecule["NC(=O)C[C@H](C(=O)O)N"], ColorRules -> {"C" -> Black}]
all C atoms become Black. But how can I make, for example, the first C atom green, the second orange, etc?