Add styling for tear line

internal/theme/style/fallback/style.go

@@ -306,4 +306,40 @@ var rules = []dataTheme.Rule {
 			dataTheme.AttrColor { Color: tomo.ColorAccent },
 		),
 	},
+
+	// *.TearLine[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "TearLine", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				tomo.Border {
+					Width: tomo.I(3),
+					Color: [4]color.Color {
+						color.Transparent,
+						color.Transparent,
+						color.Transparent,
+						color.Transparent,
+					},
+				},
+			},
+			dataTheme.AttrColor { Color: tomo.ColorForeground },
+			dataTheme.AttrPadding(tomo.I(1, 0, 0, 1)),
+		),
+		Hovered: dataTheme.AS (
+			dataTheme.AttrBorder {
+				tomo.Border {
+					Width: tomo.I(3),
+					Color: borderColorFocused,
+				},
+			},
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrBorder {
+				tomo.Border {
+					Width: tomo.I(3),
+					Color: borderColorFocused,
+				},
+			},
+		),
+	},
 }