Wonder if problem is Mac or VM.
I noticed in the your demo room when compiling on Mac with VM that similar outline problem on some of the objects in dark. Similarly improved by upping the bloom, but not completly.
Hard to see on picture. This is the outline of circle with grill near the helmet.
Will see if I can get YYC working on my machine but has been tricky. Otherwise, will see if can get hold of a Windows computer to test.
Not sure if you have other Mac users? Or if can indicate if supported?
PS: Mac point, but in your demo, the le_navigate Create event needs to add a check for os_type == os_macosx. Otherwise defaults to gamepad and can't move/interact.