Yes, you can turn it on by setting the color option in your nethackrc file with the line:
OPTIONS=color
There is also a sophisticated option for customizing the colours of in-game menus using regular expressions. You can read about that in the section on menu colours in the official Guidebook [1]. Note that the official Guidebook is considered the game’s manual and is free of spoilers. Any information you find in there is intended for all players to know before they start playing (or to reference as they go along).
Yes, you can turn it on by setting the color option in your nethackrc file with the line:
There is also a sophisticated option for customizing the colours of in-game menus using regular expressions. You can read about that in the section on menu colours in the official Guidebook [1]. Note that the official Guidebook is considered the game’s manual and is free of spoilers. Any information you find in there is intended for all players to know before they start playing (or to reference as they go along).
[1] https://www.nethack.org/v500/Guidebook.html#toc_9.12