## Appendix N. Color Support

Most programs in the PostgreSQL package can produce colorized console output. This appendix describes how that is configured.

## N.1. When Color is Used

To use colorized output, set the environment variable `PG_COLOR` as follows:

1. If the value is `always`, then color is used.

2. If the value is `auto` and the standard error stream is associated with a terminal device, then color is used.

3. Otherwise, color is not used.