Tag Cloud Color Filtering

[Skoetting]

Describe the feature:
I would like to have the ability to change the Color of the Tags in a TagCloud based on simple rules.

Describe a specific use case for the feature:
I have a TagCloud full of diffrent EventIDs. At the moment I think the Tag-Colors are random picked.
I would like to say something like if the EventID is an Error it should be Red, if a Warning Yellow, etc.

The Severity-Level is defined in another Field.

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[monfera]

This would allow it, depends of course on how Kibana binds the data. As there's no particular logic or coloring strategy assumed by word cloud in elastic-charts, it just expects a per-word color from Kiibana.

[monfera]

Closing this ticket as it's a duplicate of #12418