         line4.close()
         line4.lineWidth = GRID_LINE_WIDTH
         UIColor.white.setStroke()
-        line4.stroke()
+        line4.stroke(with: .colorDodge, alpha: 0.5)
         
         gridDrawn = true
     }

        line3.close()
        line3.lineWidth = GRID_LINE_WIDTH
        UIColor.white.setStroke()
        line3.stroke()
        
        // draw line 4
        let line4 = UIBezierPath()

    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        self.backgroundColor = UIColor.clear
        self.drawGameSquares()
    }

