debian man page for rgb

RGB(3alleg4)							  Allegro manual						      RGB(3alleg4)

NAME
       RGB - Single palette entry. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       typedef struct RGB

DESCRIPTION
	  unsigned char r, g, b;

       Palette	entry.	It contains an additional field for the purpose of padding but you should not usually care about it. Read chapter "Palette
       routines" for a description on how to obtain/use this structure.

SEE ALSO
       PALETTE(3alleg4),   ex12bit(3alleg4),   ex3d(3alleg4),	 excolmap(3alleg4),    exconfig(3alleg4),    expal(3alleg4),	exrgbhsv(3alleg4),
       exscroll(3alleg4), exshade(3alleg4), extrans(3alleg4), extruec(3alleg4)

Allegro 							   version 4.4.2						      RGB(3alleg4)