Overview
For each repository of your project you can see the overall Rating of the repository, which consists of the 4 quality charasteristics: Maintainability, Security, Readability, Reusability.
For example, in the followin image you can see the Overview of the Quality Scores for a Repository which is built in Java.
The evolution of these Quality Characteristics and the Violations done in the Repository is visualised.
Regarding the Qualty Analytics you can also get information about the Metrics, Violations, Files, Duplicates and Compare your commits.