To adjust the aura, you need to adjust the colors
For example, aura of the survivors will be as follows,
cl_glow_survivor_r 1 | r - red | Red Color
cl_glow_survivor_g 1 | g - green | Green Color
cl_glow_survivor_b 1 | b - blue | Blue Color
We get the white color of the aura of survivors when playing for them, where r - red, b - blue, g - green

============================================================================
Survivors Aura
cl_glow_survivor_r 0-1
cl_glow_survivor_g 0-1
cl_glow_survivor_b 0-1
==========================================================================
Survivors on the ground aura
cl_glow_survivor_hurt_r 0-1
cl_glow_survivor_hurt_g 0-1
cl_glow_survivor_hurt_b 0-1
==========================================================================
Survivors in vomit boomer aura
cl_glow_survivor_vomit_r 0-1
cl_glow_survivor_vomit_g 0-1
cl_glow_survivor_vomit_b 0-1
==========================================================================
============================================================================
Aura of objects at close range
cl_glow_item_r 0-1
cl_glow_item_g 0-1
cl_glow_item_b 0-1
==========================================================================
Aura of objects in the far distance
cl_glow_item_far_r 0-1
cl_glow_item_far_g 0-1
cl_glow_item_far_b 0-1
==========================================================================
Aura of objects in a black and white screen
cl_glow_thirdstrike_item_r 0-1
cl_glow_thirdstrike_item_g 0-1
cl_glow_thirdstrike_item_b 0-1
==========================================================================
Aura of physical objects (for survivors and infected)
cl_glow_ability_r 0-1
cl_glow_ability_g 0-1
cl_glow_ability_b 0-1

============================================================================
Aura of living infected
cl_glow_infected_r 0-1
cl_glow_infected_g 0-1
cl_glow_infected_b 0-1
==========================================================================
Aura of ghost infected
cl_glow_ghost_infected_r 0-1
cl_glow_ghost_infected_g 0-1
cl_glow_ghost_infected_b 0-1
==========================================================================
============================================================================
Aura of survivors on the ground
cl_glow_survivor_health_crit_r 0-1
cl_glow_survivor_health_crit_g 0-1
cl_glow_survivor_health_crit_b 0-1
==========================================================================
Aura of survivors at a high level of health
cl_glow_survivor_health_high_r 0-1
cl_glow_survivor_health_high_g 0-1
cl_glow_survivor_health_high_b 0-1
==========================================================================
With the average level of health
cl_glow_survivor_health_med_r 0-1
cl_glow_survivor_health_med_g 0-1
cl_glow_survivor_health_med_b 0-1
==========================================================================
When health is low
cl_glow_survivor_health_low_r 0-1
cl_glow_survivor_health_low_g 0-1
cl_glow_survivor_health_low_b 0-1
==========================================================================
============================================================================
Aura of the quiet witch
cl_witch_glow_idle_r 0-1
cl_witch_glow_idle_g 0-1
cl_witch_glow_idle_b 0-1
==========================================================================
Wicked witch aura
cl_witch_glow_angry_r 0-1
cl_witch_glow_angry_g 0-1
cl_witch_glow_angry_b 0-1

In order for all the settings to be saved, you need to download (or create) autoexec.cfg and write all the settings there, if you don’t do that - all settings will disappear the next time you enter the game, or you can set all the settings in config.cfg!

Also I have made the config in which the entire aura is easy and intuitive, you can download it via the Link[drive.google.com], to put that config should be in "'Drive (&:)\\Steam\ \ steamapps \ \common\Left 4 Dead 2\left4dead2\cfg"