color code services

[BretFisher]

For demoing I find it quite valuable to show the services across nodes as different colors. Once you get to 5+ tasks across nodes, it makes it much easier to follow the flow of services changing during updates if their colors match like "legacy" visualizer :)

[mikesir87]

Makes tons of sense and should be pretty easy to do. Could even mix up border styles to add more distinction too (and help for color blindness factors too).