LT-22811: Show Avalonia detail data at the Normal style's size

Src/Common/FwAvalonia/Detail/DataTree.cs

@@ -1,4 +1,4 @@
-// Copyright (c) 2026 SIL International
+// Copyright (c) 2026 SIL International
 // This software is licensed under the LGPL, version 2.1 or later
 // (http://www.gnu.org/licenses/lgpl-2.1.html)
 
@@ -968,6 +968,7 @@ private FieldContent AddField(int row, DetailField field, ShownRow shown)
 			AutomationProperties.SetName(labelBlock, field.Label ?? field.Field ?? string.Empty);
 			ToolTip.SetTip(labelBlock, field.Label ?? field.Field); // the label text is its own tip
 			var editor = CreateEditor(field, automationId);
+			ApplyValueFontSize(editor);
 			if (editor is IDisposable disposable)
 				shown.Editor = disposable;
 			editor.Margin = new Thickness(0, 0, 0, FwAvaloniaDensity.FieldSpacing);
@@ -1149,6 +1150,11 @@ private void WireLabelContextMenu(Control cell, DetailField field,
 			}, Avalonia.Interactivity.RoutingStrategies.Bubble);
 		}
 
+		// Shows the editor's data at the model's value size, the Normal style's, in place of the
+		// surface font (LT-22811).
+		private void ApplyValueFontSize(Control editor)
+			=> FwSurfaceStyles.ApplyValueFontSize(editor, Model.ValueFontSize);
+
 		// The field->control dispatch is shared with the browse in-cell editor through
 		// SliceFactory. The detail pane passes its full callback set (per-WS keyboard, slice
 		// menu, link, clipboard) and routes reference-vector gesture completion to its validation-gated

Src/Common/FwAvalonia/Detail/DetailModel.cs

@@ -2114,18 +2114,27 @@ public DetailModel(
 			string className,
 			string layoutName,
 			IReadOnlyList<DetailField> fields,
-			IReadOnlyList<ViewDiagnostic> diagnostics)
+			IReadOnlyList<ViewDiagnostic> diagnostics,
+			double valueFontSize = 0)
 		{
 			ClassName = className;
 			LayoutName = layoutName;
 			Fields = fields ?? new List<DetailField>();
 			Diagnostics = diagnostics ?? new List<ViewDiagnostic>();
+			ValueFontSize = valueFontSize;
 		}
 
 		public string ClassName { get; }
 		public string LayoutName { get; }
 		public IReadOnlyList<DetailField> Fields { get; }
 		public IReadOnlyList<ViewDiagnostic> Diagnostics { get; }
+
+		/// <summary>
+		/// The font size of the field values, in device-independent units: the project's Normal
+		/// style size. A value that carries its own <see cref="DetailWsValue.FontSize"/> shows at
+		/// that instead. 0 leaves the values at the theme's size.
+		/// </summary>
+		public double ValueFontSize { get; }
 	}
 
 	/// <summary>

Src/Common/FwAvalonia/Detail/DetailModelProjector.cs

@@ -15,9 +15,15 @@ namespace SIL.FieldWorks.Common.FwAvalonia.Detail
 	/// </summary>
 	public static class DetailModelProjector
 	{
+		/// <summary>
+		/// Projects <paramref name="definition"/> into a detail model whose rows read their
+		/// values from <paramref name="values"/>. <paramref name="valueFontSize"/> becomes the
+		/// model's <see cref="DetailModel.ValueFontSize"/> (0 leaves the theme's size).
+		/// </summary>
 		public static DetailModel FromViewDefinition(
 			ViewDefinitionModel definition,
-			IDetailValueProvider values)
+			IDetailValueProvider values,
+			double valueFontSize = 0)
 		{
 			if (definition == null)
 				throw new System.ArgumentNullException(nameof(definition));
@@ -34,7 +40,8 @@ public static DetailModel FromViewDefinition(
 				definition.ClassName,
 				definition.LayoutName,
 				fields,
-				definition.Diagnostics);
+				definition.Diagnostics,
+				valueFontSize);
 		}
 
 		private static void CollectFields(

Src/Common/FwAvalonia/Detail/DetailRichTextChrome.cs

@@ -60,6 +60,7 @@ internal static TextBlock CreatePerRunFontDisplay(DetailRichTextValue rich,
 				Background = FwAvaloniaDensity.TransparentBrush,
 				FlowDirection = rightToLeft ? FlowDirection.RightToLeft : FlowDirection.LeftToRight
 			};
+			FwSurfaceStyles.MarkValueText(display);
 			AutomationProperties.SetAutomationId(display, automationId);
 
 			foreach (var run in rich.Runs)

Src/Common/FwAvalonia/Detail/FwFieldControls.cs

@@ -799,6 +799,7 @@ private static TextBox CreateValueBox(DetailField field, DetailWsValue value, bo
 				Background = FwAvaloniaDensity.TransparentBrush,
 				TextWrapping = TextWrapping.Wrap // long values wrap; the row grows vertically
 			};
+			FwSurfaceStyles.MarkValueText(box);
 			// A voice/audio writing system has no sound player in this view yet, so the row
 			// is read-only and says why (a distinct message from the rich-content read-only case).
 			if (value.IsAudio)
@@ -937,6 +938,12 @@ private Control CreateValueContentWithFontSwap(DetailField field, string automat
 			var rtl = box.FlowDirection == FlowDirection.RightToLeft;
 			var display = DetailRichTextChrome.CreatePerRunFontDisplay(currentRich, field.WritingSystemFonts,
 				automationId + "." + wsKey + ".Display", rtl);
+			// The display stands in for the box, so it shows the value's own size and emphasis
+			// (LT-22811).
+			if (box.IsSet(TextBox.FontSizeProperty))
+				display.FontSize = box.FontSize;
+			if (box.IsSet(TextBox.FontWeightProperty))
+				display.FontWeight = box.FontWeight;
 			_valueStops.AttachDisplay(valueStop, display);
 
 			// Exactly ONE of {display, box} occupies the row at a time (IsVisible collapses the other out
@@ -1137,6 +1144,7 @@ public FwChooserField(
 				Text = CurrentName(field),
 				VerticalAlignment = VerticalAlignment.Center
 			};
+			FwSurfaceStyles.MarkValueText(_valueText);
 			ApplyEmptyValueWidth();
 			var content = new StackPanel
 			{
@@ -1440,6 +1448,7 @@ public FwReferenceVectorField(
 						BorderThickness = new Thickness(0),
 						Background = FwAvaloniaDensity.TransparentBrush
 					};
+					FwSurfaceStyles.MarkValueText(box);
 					// Held to the width its text measures, so the last character is not
 					// cut, and kept in step while typing.
 					FloorWidthToText(box);
@@ -1493,6 +1502,7 @@ public FwReferenceVectorField(
 						Background = FwAvaloniaDensity.TransparentBrush
 					};
 				}
+				FwSurfaceStyles.MarkValueText(text);
 				AutomationProperties.SetAutomationId(text, ItemAutomationId(automationId, item.Key));
 				// Any button selects, so a right-click's menu acts on the item under the pointer;
 				// focus selects too. The first item is a chip row's one Tab stop; the editors of
@@ -1678,6 +1688,7 @@ public FwReferenceVectorField(
 					Background = FwAvaloniaDensity.TransparentBrush,
 					Watermark = FwAvaloniaStrings.AddItem
 				};
+				FwSurfaceStyles.MarkValueText(newItem);
 				// Keeps its empty width until what is typed needs more than that.
 				FloorWidthToText(newItem, FwAvaloniaDensity.NewItemSlotMinWidth);
 				AutomationProperties.SetAutomationId(newItem, automationId + ".New");
@@ -2187,6 +2198,7 @@ public FwDialogLauncherField(string value, string label, Action launch)
 				Margin = FwAvaloniaDensity.TrailingGap,
 				Background = FwAvaloniaDensity.TransparentBrush // the value text is the hover surface
 			};
+			FwSurfaceStyles.MarkValueText(text);
 			AutomationProperties.SetName(text, label ?? string.Empty);
 
 			DockPanel.SetDock(_button, Dock.Right);

Src/Common/FwAvalonia/Detail/FwOptionChooser.cs

@@ -156,6 +156,8 @@ public FwOptionChooser(IReadOnlyList<DetailChoiceOption> options,
 				BorderThickness = new Thickness(0),
 				Watermark = FwAvaloniaStrings.SearchPrompt
 			};
+			// What is typed here matches the option names, so it shows at their size.
+			FwSurfaceStyles.MarkValueText(_filterBox);
 			AutomationProperties.SetAutomationId(_filterBox, automationId + ".Search");
 			AutomationProperties.SetName(_filterBox, FwAvaloniaStrings.SearchPrompt);
 			_filterBox.TextChanged += (s, e) => ApplyFilter();
@@ -226,6 +228,7 @@ public FwOptionChooser(IReadOnlyList<DetailChoiceOption> options,
 					VerticalAlignment = VerticalAlignment.Center,
 					Foreground = FwAvaloniaDensity.PickerForegroundBrush
 				};
+				FwSurfaceStyles.MarkValueText(_dropdownLabel);
 				var chevron = new TextBlock
 				{
 					Text = "▾", // ▾ collapsed-dropdown affordance
@@ -948,6 +951,7 @@ private IDataTemplate OptionTemplate()
 						VerticalAlignment = VerticalAlignment.Center,
 						Foreground = FwAvaloniaDensity.HotlinkBrush
 					};
+					FwSurfaceStyles.MarkValueText(create);
 					AutomationProperties.SetAutomationId(create, _automationId + ".Create");
 					AutomationProperties.SetName(create, option.Name);
 					return create;
@@ -959,6 +963,7 @@ private IDataTemplate OptionTemplate()
 					Foreground = IsOptionAvailable(option) ? FwAvaloniaDensity.PickerForegroundBrush : FwAvaloniaDensity.DisabledOptionBrush,
 					Opacity = IsOptionAvailable(option) ? 1.0 : 0.55
 				};
+				FwSurfaceStyles.MarkValueText(label);
 				if (!_multiSelect)
 				{
 					label.Margin = new Thickness(option.Depth * 14, 0, 0, 0);

Src/Common/FwAvalonia/Detail/FwReversalEntriesField.cs

@@ -370,6 +370,7 @@ private Control CreateRow(GroupState state, DetailReversalRow row, string rowId,
 				Background = FwAvaloniaDensity.TransparentBrush,
 				TextWrapping = TextWrapping.NoWrap
 			};
+			FwSurfaceStyles.MarkValueText(editor);
 			box = editor;
 			if (!string.IsNullOrEmpty(group.FontFamily))
 				editor.FontFamily = new FontFamily(group.FontFamily);
@@ -852,6 +853,7 @@ private static Control CreateOtherWsSuffix(DetailReversalRow row, string automat
 				Padding = FwAvaloniaDensity.EditorPadding,
 				FlowDirection = FlowDirection.LeftToRight
 			};
+			FwSurfaceStyles.MarkValueText(block);
 			block.Inlines.Add(new Run("["));
 			for (var i = 0; i < row.OtherWsForms.Count; i++)
 			{

Src/Common/FwAvalonia/Detail/FwStructuredTextField.cs

@@ -105,6 +105,7 @@ private Control CreateParagraphRow(
 				Background = FwAvaloniaDensity.TransparentBrush,
 				TextWrapping = TextWrapping.Wrap
 			};
+			FwSurfaceStyles.MarkValueText(box);
 			var paragraphStop = _paragraphStops.Add(box);
 			AutomationProperties.SetAutomationId(box, automationId + ".Para." + index);
 			AutomationProperties.SetName(box, FwAvaloniaStrings.StructuredTextParagraphName(field.Label ?? automationId, index + 1));

Src/Common/FwAvalonia/Detail/LexiconFirstSlice.cs

@@ -179,7 +179,9 @@ private static ViewNode StampProductLeaf(ViewNode source, string automationId, s
 			=> new ViewNode(source.StableId, ViewNodeKind.Field, labelOverride ?? source.Label, source.Abbreviation,
 				source.Field, source.RawEditor, source.EditorClassification, source.WritingSystem, source.Visibility,
 				source.Expansion, source.Indented, source.TargetLayout, null,
-				source.LocalizationKey, automationId, HostRouting.Product, helpTopicId: source.HelpTopicId);
+				source.LocalizationKey, automationId, HostRouting.Product,
+				boldEmphasis: source.BoldEmphasis, fontScalePercent: source.FontScalePercent,
+				helpTopicId: source.HelpTopicId);
 
 		private static ViewNode Leaf(string stableId, string label, string field, string editor, string ws, string automationId)
 			=> new ViewNode(stableId, ViewNodeKind.Field, label, null, field, editor,