I need to remove transparency from a PNG and replace White background about skiasharp.qrcode HOT 1 CLOSED

        Using surface = SKSurface.Create(info)
            Dim canvas = surface.Canvas
            canvas.Clear(SKColors.White)

            Using qrCodeRenderer = New QRCodeRenderer()
                Dim area As SKRect = SKRect.Create(0, 0, info.Width, info.Height)
                qrCodeRenderer.Render(canvas, area, qr, SKColors.Black)
            End Using

            Using image = surface.Snapshot()

                Using data = image.Encode(SKEncodedImageFormat.Png, 100)

                    Using stream = File.OpenWrite(Application.StartupPath & "/geo.png")
                        data.SaveTo(stream)
                    End Using
                    Return data.ToArray()
                End Using
            End Using
        End Using
    End Using
End Function`