  We present a method to register individual members of a robotic swarm in an
augmented reality display while showing relevant information about swarm
dynamics to the user that would be otherwise hidden. Individual swarm members
and clusters of the same group are identified by their color, and by blinking
at a specific time interval that is distinct from the time interval at which
their neighbors blink. We show that this problem is an instance of the graph
coloring problem, which can be solved in a distributed manner in O(log(n))
time. We demonstrate our approach using a swarm chemistry simulation in which
robots simulate individual atoms that form molecules following the rules of
chemistry. Augmented reality is then used to display information about the
internal state of individual swarm members as well as their topological
relationship, corresponding to molecular bonds.
