 [semidet]ansi_get_color(+Which, 
-RGB)
[semidet]ansi_get_color(+Which, 
-RGB)foreground and background. This predicate 
sends a request to the console (user_output) and reads the 
reply. This assumes an xterm compatible terminal.
| RGB | is a term rgb(Red,Green,Blue). 
The color components are integers in the range 0..65535. |