Colour code changes for services within the same transaction

[simitt]

Select a trace with at least 2 transactions. Select different buckets in the response time distribution and check which services show up and which colour coding they have. Some of the buckets flip the colour coding for services, which is pretty confusing. Afaik the colour coding is random but should be the same between different buckets.

See screenshots for clarification. In both cases opbeans-node is the service where the trace starts. In the first screen shot it is coloured green and listed as second service item. In the second screenshot it is blue and listed as first service item.

[elasticmachine]

Pinging @elastic/apm-ui

[sorenlouv]

Closed in sorenlouv#4