Changes:

1- Added experimental function: "Volumetric lights". It can cause lags and its quite buggy (Pro tip: Look at the floor when disabling volumetric lights)

2- Fixed "Well... To fix this valve I need to find a wrench somewhere." subtitle

3- Fixed tip for "Find the lever handle" objective in pause

4- Fixed "Crosshair" checkmark in pause.

5- Some lights are not flickering anymore (because it can cause not the best effect for your eyes and some type of people). Some of them are still flickering though.