man gui_mg_color () - The color used for displaying greyed-out dialog objects. Allegro game programming library.
NAME
gui_mg_color - The color used for displaying greyed-out dialog objects. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
extern int gui_mg_color;
DESCRIPTION
The color used for displaying greyed-out dialog objects (with the D_DISABLED flag set). Defaults to 8.