Step 2: Define a static constructor

Define a static constructor to initialize static members of the class.

C#

static IconNode()
{
    defaultIcon = new Bitmap(48, 48);

    Graphics graphics = Graphics.FromImage(defaultIcon);
    Font font = new Font("Arial", 48, FontStyle.Bold, GraphicsUnit.Pixel);

    graphics.FillRectangle(Brushes.Transparent, 0, 0, 48, 48);
    graphics.DrawString("?", font, Brushes.Black, 0, 0);

    font.Dispose();
    graphics.Dispose();
}

Visual Basic

Shared Sub New()

    defaultIcon = New Bitmap(48, 48)

    Dim graphics As Graphics = graphics.FromImage(defaultIcon)
    Dim font As Font = New Font("Arial", 48, FontStyle.Bold, GraphicsUnit.Pixel)

    graphics.FillRectangle(Brushes.Transparent, 0, 0, 48, 48)
    graphics.DrawString("?", font, Brushes.Black, 0, 0)

    font.Dispose()
    graphics.Dispose()

End Sub