This command enables and disables (toggles) full brightness. With full brightness enabled, every location in the game has maximum brightness, so all dark areas will be light.
The syntax for the bright command is as follows:
Find below working examples of the bright command.
If full bright is disabled (default), the above cheat code will enable it, making every location have good lighting. Using this cheat code again (i.e. typing bright into the console whilst bright is enabled), will turn it off, making brightness normal again.