At the moment Violations plugin has an inconsistency in a representation of violations.

Internally plugin has 5 Severities (Severity.java):

• HIGH
• MEDIUM_HIGH
• MEDIUM
• MEDIUM_LOW
• LOW

But these 5 levels are shown only in 3 Colors (SeverityTypeDataSet.java):

• RED
• VIOLET
• YELLOW

(The selection of colors is unusual too. Means violet better or worser as red?)

As a result of mapping of 5 levels to 3 colors some critical information is lost.

For example Checkstyle has errors (mapped to MEDIUM_HIGH) and warnings (mapped to MEDIUM).

In a graph they are both red, therefore one can not distinguish between them.