static int exciting_colour()
{
    switch(random2(4))
    {
        case 0: return YELLOW;
        case 1: return LIGHTGREEN;
        case 2: return LIGHTRED;
        case 3: return LIGHTMAGENTA;
        default: return MAGENTA;
    }
}

    // unrandom artefacts get predefined colours
    if ( is_random_artefact(item) )
        return exciting_colour();

            item_colour = RED;

            item_colour = LIGHTBLUE;

            item_colour = LIGHTGREEN;

            item_colour = RED;

        item_colour = RED;

        item_colour = LIGHTBLUE;

        item_colour = LIGHTRED;

        item_colour = CYAN;