Error in UIColor+Extensions.swift - 3D IOS Games

The .random extension to UIColor has an error I believe. The algorithm uses arc4random_uniform to choose an entry into a color table. The max value used should be the count of the table -1. Below is the correct version

public static func random() -> UIColor {
    let maxValue = UIColorList.count - 1 
    let rand = Int(arc4random_uniform(UInt32(maxValue)))
    return UIColorList[rand]