Gloom now supports pseudo-fog. The fog works by blending the client's screen with the color you specify. This entity supports the classes field, which in this case specifies which classes WILL see the fog. If no value is specified then all classes will see the fog. This field specifies which classes WILL see the fog.
All classes see the fog by default.
This field specifies how thick the fog is. The range is 0 to 100, where 0 is no fog at all and 100 completely obscures the player's screen with fog. The speed field specifies how much red is in the fog. The three fields that specify colors are speed, accel, and decel - red, green and blue respectively. The values are relative, so there is no set range.