Lighten_Color.swift

/// Method that returns a slightly lighter color than the one passed in
///
/// :param: color color is the color we want to make ligter
/// :returns: The lighter color
func lighterColorForColor(color: UIColor) -> UIColor {
    var r:CGFloat = 0, g:CGFloat = 0, b:CGFloat = 0, a: CGFloat = 0
    if color.getRed(&r, green: &g, blue: &b, alpha: &a) {
        return UIColor(red: min(r + colorShadeDifference, 1.0), green: min(g + colorShadeDifference, 1.0), blue: min(b +     colorShadeDifference, 1.0), alpha: a)
    }
    return color
}