     /**
     The value of the alpha component of the current color.
     
+        let c = C4Color()
+        let alphaVal = c.alpha
+
     :returns: Double value in the range [0.0 ... 1.0]
     */
     public var alpha: Double {

    
    /**
    Initializes and returns a new color object. Defaults to black with 0 opacity (i.e. clear).
    */
    public init() {
        colorSpace = CGColorSpaceCreateDeviceRGB()

    /** 
    The value of the red component of the current color, [0.0 ... 1.0]

        let c = C4Color()
        let redVal = c.red

    :returns: Double value in the range [0.0 ... 1.0]
    */
    public var red: Double {
