CMake Project Highlighting

Hello,

My apologies if this has been asked before, but I was unable to find any information relating to my issue.

Prior to CLion 2018, in 2017.3 for example, the project view would gray-out folders and files that were not included by your CMakelists.txt:

But now that highlighting no longer happens post version 2018:

Is there anything I can do to revert this back to how version 2017.3 would display this?

Thanks in advance for your help!