the Detect Categorical Outliers uses "anomalydetection" which is a splunk search command. You can find details on this page:
http://docs.splunk.com/Documentation/Splunk/7.0.0/SearchReference/Anomalydetection.
You can also click the "Show SPL" button to find out the underlying SPL that constructs the query.
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Hi Josephinemho,
Unfortunately the downsampled Line Chart ( or any Machine Learning Toolkit built-in Visualization) doesn't support custom options (color, size, etc.) at the moment.
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