How do I enable "ANSI color" support?

You can turn on color by using the 'ANSI_COLOR' directive in the citadel.rc file. There are four modes: OFF, which always turns color off; ON, which always turns it on; AUTO, which sends an enquiry to the terminal and turns color on if it discovers that the terminal supports it, and USER, which prompts each user for a color on/off setting in their configuration.