TransformsProvider.Transparentize Method (Color)

C#

public void Transparentize(
        Color backgroundColor
)

C#

using (var bitmap = new Bitmap(@"Images\GMlogoBlack.png"))
{

    bitmap.Transforms.Transparentize(new RgbColor(0, 0, 0));
    bitmap.Save(@"Images\Output\Output\out.png");
}