SignaturePad Default Background Colour Black

[vishal-vaghasiya]

I have Create programmatically signature pad design but default background colour is black first time tap to colour change white.

var signatureView: SignaturePad!

signatureView = SignaturePad(frame: CGRect(x: 0, y: 0, width: Int(screenWidth - 40), height: 150))
                self.signatureView.delegate = self
                
                signatureView.layer.borderWidth = 1
                signatureView.layer.cornerRadius = 5
                signatureView.layer.borderColor = UIColor.lightGray.cgColor