     /**
      Make color lighter with defined amount.
 
-     - parameter amount Defines how much lighter color is returned. Should be from 0.0 to 1.0
+     - parameter amount: Defines how much lighter color is returned. Should be from 0.0 to 1.0
      */
     public func lighter(amount: CGFloat) -> UIColor {
         return colorWithBrightnessAmount(1 + amount)

    /**
     Make color darker with defined amount.

     - parameter amount Defines how much darker color is returned. Should be from 0.0 to 1.0
     */
    public func darker(amount: CGFloat) -> UIColor {
        return colorWithBrightnessAmount(1 - amount)

    /**
     Initialize color from hex int (eg. 0xff00ff).

     - parameter hex: Hex int to create color from
     */
    public convenience init(hex: UInt32) {
        self.init(
