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calibration functions for Leeform

VisionBuilder.UI.Avalonia.Uno/Converters/BoolToVisibilityConverter.cs

@@ -0,0 +1,17 @@
+using System.Globalization;
+using Avalonia.Data.Converters;
+
+namespace VisionBuilder.UI.Avalonia.Uno.Converters;
+
+public class BoolToVisibilityConverter : IValueConverter
+{
+    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        return value is true;
+    }
+
+    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}