             )!
         context.setShouldAntialias(false)
         
-        let color = UIColor.randomNormalizedColor().cgColor
-        context.setFillColor(color)
+        var color = UIColor.tintMuted.cgColor
         
         let cellSize = CGSize(width: size.width / CGFloat(rows), height: size.height / CGFloat(columns));
         
         for row in 0..<rows {
             for col in 0..<columns - columns/2 {
                 let offset = Int(row * columns + col)
-                if ((value >> offset) & 0b1) == 0 {
+                let digit: Int = (value >> offset)
+                if (digit & 0b1) == 0 {
                     continue
                 }
                 

                       brightness: bri,
                       alpha: 1.0)
    }
}

public extension CGColor {

    private let numberOfRows = 5
    private let numberOfRowComponents = 5
    
    public let size: CGSize = CGSize(width: 600, height: 600)
    
    public init() {}
    
