docs/src/reference-main-env-vars.md
The following environment variables affect how Miller works:
MLRRC: see Customization.MLR_NO_COLOR, NO_COLOR, MLR_ALWAYS_COLOR, MLR_KEY_COLOR, MLR_VALUE_COLOR, MLR_PASS_COLOR, MLR_FAIL_COLOR, MLR_REPL_PS1_COLOR, MLR_REPL_PS2_COLOR, MLR_HELP_COLOR: see Output Colorization.MLR_REPL_PS1, MLR_REPL_PS2: see REPL.