title: What is the color and number beside the line number in cobertura report
body: <p>I used mvn cobertura:cobertura to generate this cobertura JUnit test coverage report. Can anyone explain to me what do the numbers beside the line number mean? Thank you.</p>
  
  <p><a href="https://i.stack.imgur.com/2jjNA.png" rel="noreferrer"><img src="https://i.stack.imgur.com/2jjNA.png" alt="enter image description here"></a></p>