Code is not highlighting in developer console after running the test class
|Knowledge Article Number||000187593|
|Description||Code is not highlighting with Red/Blue in developer console after running the test class.|
|Resolution||In this scenario one of the reason can be "Store Only Aggregate Code Coverage" of ApexTestExecution option is checked in the Org. If it is checked make sure to uncheck the option to see the code coverage highlighting.
Go to :
Develop -> ApexTestExecution and click on Options link on that page to see this option "Store Only Aggregate Code Coverage".