Available atomic colouring schemes are:

Value Description
charge Atoms and connected bonds are coloured according to their charge
element Atoms and connected bonds are coloured according to their element
force Atoms and connected bonds are coloured according to the force acting on the atom
velocity Atoms and connected bonds are coloured according to the velocities of the atoms
bonds Atoms and connected bonds are coloured according to the number of bonds to the atom
custom Atoms and connected bonds are coloured according to the custom colours set on individual atoms