In the OSS (open-source) version of Elementary, the anomaly charts do not visually distinguish between training and detection periods with different colors as shown in the documentation. All data points (nodes) are currently colored the same (typically green), including those in the training period. The use of grey for training period points in the docs is just for clarity and does not reflect the actual OSS UI. This was confirmed by Elementary support: "The dots are currently colored in the training period also. They're gray in docs just for clarity purposes" [Slack discussion](https://slack.com/archives/C02CTC89LAX/p1712144079004499). In contrast, the Cloud version does provide a more advanced visualization, where data points in the training period are dark grey and those in the detection period are colored, making it easier to distinguish between the two periods visually [Automated Volume Monitor docs](https://docs.elementary-data.com/features/anomaly-detection/automated-volume). So, this specific chart feature is only present in the Cloud version, not in OSS.

Thank you for clarifying your question. Based on the knowledge sources, the OSS (open-source) version of Elementary does generate anomaly charts for certain anomaly tests (such as volume anomalies and column anomalies) in the HTML report. Users in the Slack discussions have referenced seeing these charts in their OSS-generated reports, though there have been some issues and limitations reported: - For volume anomalies, charts are expected to appear in the OSS report, but the color distinction between training and detection periods is not present (all dots are colored the same) [Slack discussion](https://slack.com/archives/C02CTC89LAX/p1712144079004499). - For dimension anomalies, as of recent discussions, visualization is not yet implemented in the OSS version, so you will not see charts for these tests. This is a known limitation and is being worked on by the Elementary team [Slack thread](https://slack.com/archives/C02CTC89LAX/p1701853285642399). - If you are not seeing any anomaly charts at all (for example, for volume or column anomalies), it could be due to configuration issues, lack of sufficient data, or a bug. Some users have reported that anomaly charts did not appear until they had enough data for the training period, or after running the tests multiple times. Also, ensure that your test configuration and dbt/Elementary versions are compatible and up to date [Slack thread](https://slack.com/archives/C02CTC89LAX/p1673608521417509). In summary: - Charts for volume and column anomalies should appear in the OSS report if configured and run correctly. - Charts for dimension anomalies are not yet available in OSS. - If you are not seeing any charts at all, check your configuration, ensure enough data is present, and verify your versions. If you continue to have issues, it may be helpful to check your logs or share your configuration for further troubleshooting, as sometimes specific bugs or misconfigurations can prevent charts from appearing [Slack thread](https://slack.com/archives/C02CTC89LAX/p1673530364501279). Let me know if you need help troubleshooting a specific test or configuration!