Follow up to
Usability tests highlighted that often users aren't clear what different statuses mean or what the health column means.
Introducing these icons is a non-obtrusive but effective way of providing more information to customers on what they mean.
The linked content would be
- Marathon UI https://mesosphere.github.io/marathon/docs/marathon-ui.html
- Health Checks https://mesosphere.github.io/marathon/docs/health-checks.html