new start = 0xBADA55;
FadeToWhite(start, 1.0); // 100% fade, white 0xFFFFFF
FadeToWhite(start, 0.5); // 50% fade, less green, more white, somewhere around 0xC4D392

FadeToWhite(colour, Float:percent)
{
    if (percent <= 0.0) {
        return colour;
    }

    if (percent >= 1.0) {
        return 0xFFFFFF;
    }

    new
        r = (colour >> 16) & 0xFF,
        g = (colour >> 8) & 0xFF,
        b = colour & 0xFF,
        dr = floatround((0xFF - r) * percent),
        dg = floatround((0xFF - g) * percent),
        db = floatround((0xFF - b) * percent)
    ;

    return ((r + dr) << 16) + ((g + dg) << 8) + (b + db);
}