N.2. Configuring the Colors #

   The actual colors to be used are configured using the environment
   variable PG_COLORS (note plural). The value is a colon-separated list
   of key=value pairs. The keys specify what the color is to be used for.
   The values are SGR (Select Graphic Rendition) specifications, which are
   interpreted by the terminal.

   The following keys are currently in use:

   error
          used to highlight the text “error” in error messages

   warning
          used to highlight the text “warning” in warning messages

   note
          used to highlight the text “detail” and “hint” in such messages

   locus
          used to highlight location information (e.g., program name and
          file name) in messages

   The default value is error=01;31:warning=01;35:note=01;36:locus=01
   (01;31 = bold red, 01;35 = bold magenta, 01;36 = bold cyan, 01 = bold
   default color).

Tip

   This color specification format is also used by other software packages
   such as GCC, GNU coreutils, and GNU grep.