So this week I needed to create a sample image for a Picturebox in a Windows Applicaton Form.
There are several samples online if you want to get something quick, I found this and adjusted a little.

I created a function so that I can use it whenever I need a placeholder image.

 Public Function createblnkimg()

        Dim colour1 As Integer = 0
        Dim colour2 As Integer = 11

        Dim ImgAsset As Bitmap = New Bitmap(200, 200)
        Dim ImgAssetGPH As Graphics = Graphics.FromImage(ImgAsset)
        While colour2 <= 200
            ImgAssetGPH.FillRectangle(Brushes.CadetBlue, 0, colour1, 200, 200)
            ImgAssetGPH.FillRectangle(Brushes.White, 0, colour2, 200, 200)
            colour1 += 20
            colour2 += 20

        End While

        Return ImgAsset

    End Function