     private var _selected = false
     private var _highlighted = false
 	
-	private var _backgroundColor:UIColor!
-	private var _borderColor:UIColor!
-	private var _highlightedBackgroundColor:UIColor!
-	private var _highlightedBorderColor:UIColor!
-	private var _selectedBackgroundColor:UIColor!
-	private var _selectedBorderColor:UIColor!
+	private var _backgroundColor = UIColor.white
+	private var _borderColor:UIColor = UIColor.clear
+	private var _highlightedBackgroundColor:UIColor?
+	private var _highlightedBorderColor:UIColor?
+	private var _selectedBackgroundColor:UIColor?
+	private var _selectedBorderColor:UIColor?
 	
 	
     // -----------------------------------------------------------------------------------------------------------------------

    // -----------------------------------------------------------
    // -- TableViewCell overrides
    // -----------------------------------------------------------
    
    override open func setSelected(_ selected: Bool, animated: Bool) {
        self._selected = selected
		if self.styleName != nil {

    
    fileprivate func updateColors() {
        if self._highlighted {
            self.backgroundColor = self._highlightedBackgroundColor ?? self._backgroundColor
            self.layer.borderColor = self._highlightedBorderColor?.cgColor ?? self._borderColor.cgColor
        } else if self._selected {
            self.backgroundColor = self._selectedBackgroundColor ?? self._backgroundColor
            self.layer.borderColor = self._selectedBorderColor?.cgColor ?? self._borderColor.cgColor
        } else {
            self.backgroundColor = self._backgroundColor
            self.layer.borderColor = self._borderColor.cgColor
