/// <summary>
/// Initializes class with graphics object</summary>
/// <param name="graphics">Graphics object for drawing</param>
public override void Init(D2dGraphics graphics)
{
base.Init(graphics);
SelectedBrush = graphics.CreateSolidBrush(Color.Tomato);//should have width of 3
CollapsedBrush = graphics.CreateSolidBrush(Color.LightGray);
InvalidBrush = graphics.CreateSolidBrush(Color.DimGray);
GroupBrush = graphics.CreateLinearGradientBrush(
new D2dGradientStop(Color.LightGoldenrodYellow, 0),
new D2dGradientStop(Color.Khaki, 1));
GhostGroupBrush = graphics.CreateSolidBrush(Color.FromArgb(128, Color.Gray));
TrackBrush = graphics.CreateSolidBrush(Color.LightGray);
GhostTrackBrush = graphics.CreateSolidBrush(Color.FromArgb(128, Color.Gray));
TextBrush = graphics.CreateSolidBrush(SystemColors.WindowText);
}