How to create a scary atmosphere

[Adny]

Also PLEASE be sure to match the fog particle's color with the light it is nearby. I can't stand seeing grey fog next to orange lights. Dust and fog are going to light up like any other object in the real world, therefore, the fog will match the surrounding color.

This so much. Why didn't FG put a "tie color to point light" option for fog/dust like they did for billboards? In real life they're really not different, just different mediums for light to travel through.