using Avalonia; using Avalonia.Controls.Primitives; namespace StabilityMatrix.Avalonia.Controls; public class StackExpander : TemplatedControl { public static readonly StyledProperty SpacingProperty = AvaloniaProperty.Register< StackCard, int >("Spacing", 8); public int Spacing { get => GetValue(SpacingProperty); set => SetValue(SpacingProperty, value); } }