Makes it more obvious what the state of each agent is.

Missing/Lost agents are marked with a vivid red colour, you should fix those ASAP.
Agents that are currently being used are highlighted green, good for seeing how many agents are actually being utilised at a time.
Cancelled agents are marked in a bright yellow colour, sometimes agents can become stuck in the "cancelled" state, so it's good to be able to monitor the number of cancelled VMs