The output colorization is implemented by terminal-colors.d(5) functionality. Implicit coloring can be disabled by an empty file

for the {command} command or for all tools by

The user-specific $XDG_CONFIG_HOME/terminal-colors.d or $HOME/.config/terminal-colors.d overrides the global setting.

Note that the output colorization may be enabled by default, and in this case terminal-colors.d directories do not have to exist yet.