The zip file contains three scripts:

1. "OptionMenu": This script allows for switching between canvases, such as moving from the pause canvas to the option canvas.
2. "TogglePostProcessing": This script is a post-processing controller that must be attached to the object holding the 'Post Processing Volume'.
3. "ToggleOption": This script can be added to an empty object, and it manages toggle switches (UI) for the corresponding settings.

recommended

Pause Screen

Ammo and Health Display - Dynamic UI

Start screen with main menu