NSButton extension to set title color

NSButtonExtension.swift

extension NSButton {
 
    var titleTextColor : NSColor {
        get {
            let attrTitle = self.attributedTitle
            return attrTitle.attribute(NSForegroundColorAttributeName, at: 0, effectiveRange: nil) as! NSColor
        }
        
        set(newColor) {
            let attrTitle = NSMutableAttributedString(attributedString: self.attributedTitle)
            let titleRange = NSMakeRange(0, self.title.characters.count)

            attrTitle.addAttributes([NSForegroundColorAttributeName: newColor], range: titleRange)
            self.attributedTitle = attrTitle
        }
    }
    
}