optimized and add diagnostic feature

Billing.Shared/UI/Converters.cs

@@ -244,4 +244,23 @@ namespace Billing.UI
             throw new NotImplementedException();
         }
     }
+
+    public class TintColorConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is long l)
+            {
+                return l.IsTransparent() ?
+                    BaseTheme.CurrentPrimaryColor :
+                    l.ToColor();
+            }
+            return Color.Transparent;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
 }

Billing.Shared/UI/Definition.cs

@@ -9,6 +9,7 @@ namespace Billing.UI
     {
         public const string PrimaryColorKey = "PrimaryColor";
         public const string DefaultIcon = "ic_default";
+        public const long TransparentColor = 0x00ffffffL;
 
         public static partial (string main, long build) GetVersion();
         public static partial string GetRegularFontFamily();

Billing.Shared/UI/OptionsCells.cs

@@ -237,6 +237,13 @@ namespace Billing.UI
                 .Binding(Image.SourceProperty, nameof(ImageSource))
                 .Binding(TintHelper.TintColorProperty, nameof(TintColor)),
 
+                new Label
+                {
+                    VerticalOptions = LayoutOptions.Center
+                }
+                .Binding(Label.TextProperty, nameof(Detail))
+                .DynamicResource(Label.TextColorProperty, BaseTheme.SecondaryTextColor),
+
                 new TintImage
                 {
                     HeightRequest = 20,