DiagramOptions.cs

public class DiagramOptions
{
    [Description("Key code for deleting entities")]
    public string DeleteKey { get; set; } = "Delete";
    [Description("Whether to inverse the zoom direction or not")]
    public bool InverseZoom { get; set; }
    [Description("The default component for nodes")]
    public Type? DefaultNodeComponent { get; set; }
    [Description("The grid size (grid-based snaping")]
    public int? GridSize { get; set; }
    [Description("Whether to enable the ability to group nodes together using [CTRL+ALT+G] or not")]
    public bool GroupingEnabled { get; set; }
    [Description("Whether to allow users to select multiple nodes at once using CTRL or not")]
    public bool AllowMultiSelection { get; set; } = true;
    [Description("Whether to allow panning or not")]
    public bool AllowPanning { get; set; } = true;
    [Description("Whether to allow zooming or not")]
    public bool AllowZooming { get; set; } = true;

    public DiagramLinkOptions Links { get; set; } = new DiagramLinkOptions();
}

public class DiagramLinkOptions
{
    [Description("The default type of newly created links")]
    public LinkType DefaultLinkType { get; set; }
    [Description("The default component for links")]
    public Type? DefaultLinkComponent { get; set; }
    [Description("The default color for links")]
    public string DefaultColor { get; set; } = "black";
    [Description("The default color for selected links")]
    public string DefaultSelectedColor { get; set; } = "rgb(110, 159, 212)";
}