Trim table headings used as card labels (2.22.1)

CHANGELOG.md

@@ -6,6 +6,14 @@ and `MarkupString.Pueblo`. The packages share one version and are released toget
 The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and the project
 follows [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 2.22.1 — Unreleased
+
+### Fixed
+
+- A `Table` read as cards (linear, or too narrow for its columns) trims the spaces around each heading
+  before using it as a label, so a heading padded for its column, such as `"Idle "`, reads `Idle: 59s`
+  instead of `Idle : 59s`.
+
 ## 2.22.0 — Unreleased
 
 ### Added

MarkupString.Tests/Layout/FieldsAndTreeTests.cs

@@ -94,6 +94,16 @@ public async Task Fields_Linear_ReadLabelThenValue()
 		=> await Assert.That(Lines(Sheet(Character[..2]) with { Columns = 2 }, 40, new LayoutContext { Linear = true }))
 			.IsEquivalentTo(new[] { "Sex: Male", "Species: Human" });
 
+	[Test]
+	public async Task Table_Linear_LabelsEachCellWithoutTheHeadingsPadding()
+	{
+		var table = new Table(
+			[new TableColumn(P("Player")), new TableColumn(P("Idle ")) { Alignment = Alignment.Right }],
+			[[new TextBlock(P("Mannaz")), new TextBlock(P("59s"))]]);
+
+		await Assert.That(Lines(table, 40, new LayoutContext { Linear = true })).IsEquivalentTo(new[] { "Player: Mannaz", "Idle: 59s" });
+	}
+
 	private static Tree Channels(TreeGuide guide) => new(
 	[
 		new TreeItem(P("Channels"),

MarkupString/Layout/Blocks/Table.cs

@@ -98,7 +98,8 @@ private void DrawCards(LayoutContext context, int width, IList<MarkupText> lines
 		{
 			if (r > 0 && !context.Linear) lines.Add(MarkupText.Empty);
 			var row = rows[r];
-			cards.Draw(new Fields([.. Enumerable.Range(0, Columns.Length).Select(c => new Field(Columns[c].Header, Cell(row, c)))]), width, lines);
+			// A header's outer spaces line its column up with the next; as a label they would sit before the colon.
+			cards.Draw(new Fields([.. Enumerable.Range(0, Columns.Length).Select(c => new Field(Columns[c].Header.Trim(TrimType.TrimBoth), Cell(row, c)))]), width, lines);
 		}
 	}