diff --git a/src/CUETools.Linux.App/Controls/RailStrip.cs b/src/CUETools.Linux.App/Controls/RailStrip.cs
index 39a36bc..05ea17e 100644
--- a/src/CUETools.Linux.App/Controls/RailStrip.cs
+++ b/src/CUETools.Linux.App/Controls/RailStrip.cs
@@ -68,6 +68,14 @@ public RailStripKey(Geometry glyph, string pageName)
 
     public bool IsActiveKey { get; private set; }
 
+    /// <summary>Pointer state for the housing lamp (D-088). These keys draw
+    /// themselves rather than living in a template, so the seam light that the
+    /// key styles get from XAML has to be built here instead. D-080 (4) put the
+    /// rail in scope precisely so the most-clicked surface in the app would not
+    /// be the one thing that stopped responding.</summary>
+    private bool _hot;
+    private bool _held;
+
     public void SetActive(bool active)
     {
         IsActiveKey = active;
@@ -104,5 +112,46 @@ public void Restyle()
             _glyph.Effect = null;
             BoxShadow = BoxShadows.Parse(dark ? "0 1.5 3 0 #70000000" : "0 1.5 3 0 #30536057");
         }
+
+        // the housing lamp under the key, over whatever shadow the state above
+        // chose. An active key keeps its teal halo and gains the warm one, the
+        // same way a lit key on a console still lights its own seam.
+        if (_hot || _held)
+        {
+            string seam = this.TryFindResource("KeySeamColor", ActualThemeVariant, out object? c) && c is Color sc
+                ? $"{sc.R:X2}{sc.G:X2}{sc.B:X2}"
+                : (dark ? "F0A24A" : "C9762A");
+            string alpha = _held ? "B0" : "55";
+            BoxShadow = BoxShadows.Parse($"{BoxShadow}, 0 1 13 0 #{alpha}{seam}");
+        }
+    }
+
+    protected override void OnPointerEntered(Avalonia.Input.PointerEventArgs e)
+    {
+        base.OnPointerEntered(e);
+        _hot = true;
+        Restyle();
+    }
+
+    protected override void OnPointerExited(Avalonia.Input.PointerEventArgs e)
+    {
+        base.OnPointerExited(e);
+        _hot = false;
+        _held = false;
+        Restyle();
+    }
+
+    protected override void OnPointerPressed(Avalonia.Input.PointerPressedEventArgs e)
+    {
+        base.OnPointerPressed(e);
+        _held = true;
+        Restyle();
+    }
+
+    protected override void OnPointerReleased(Avalonia.Input.PointerReleasedEventArgs e)
+    {
+        base.OnPointerReleased(e);
+        _held = false;
+        Restyle();
     }
 }
diff --git a/src/CUETools.Linux.App/Theme/AnalogControls.axaml b/src/CUETools.Linux.App/Theme/AnalogControls.axaml
index aeb6d90..4b3049c 100644
--- a/src/CUETools.Linux.App/Theme/AnalogControls.axaml
+++ b/src/CUETools.Linux.App/Theme/AnalogControls.axaml
@@ -355,25 +355,48 @@
     <Setter Property="Margin" Value="0,1,2,1" />
     <Setter Property="Template">
       <ControlTemplate>
-        <Border Name="bankKey"
-                Background="Transparent"
-                BorderBrush="Transparent"
-                BorderThickness="1"
-                CornerRadius="5"
-                Padding="{TemplateBinding Padding}">
-          <StackPanel Spacing="3">
-            <ContentPresenter Name="bankKeyContent"
-                              Content="{TemplateBinding Content}"
-                              ContentTemplate="{TemplateBinding ContentTemplate}"
-                              HorizontalAlignment="Center" />
-            <!-- the detent pip: the lamp that says which position is engaged -->
-            <Border Name="bankPip"
-                    Height="3" Width="20" CornerRadius="1.5"
-                    HorizontalAlignment="Center"
-                    Opacity="0.55"
-                    Background="{DynamicResource Line}" />
-          </StackPanel>
-        </Border>
+        <Panel ClipToBounds="False">
+          <!-- D-088, same fixture as a full key: the housing lamp under this
+               position, seen through its seam. Tighter and dimmer than a
+               button's, because bank keys sit 2 DIP apart and a button-sized
+               bloom on each would wash across its neighbours.
+               It deliberately does NOT light the selected position. The teal
+               pip says which one is engaged and the amber says which one you
+               are touching; running both off the same key would collapse two
+               different questions into one light. -->
+          <Border Name="bankSeam" Opacity="0" IsHitTestVisible="False"
+                  ClipToBounds="False" CornerRadius="5">
+            <Border.Background>
+              <LinearGradientBrush StartPoint="0%,0%" EndPoint="0%,100%">
+                <GradientStop Color="{DynamicResource KeySeamColor}" Offset="0" />
+                <GradientStop Color="{DynamicResource KeySeamColor}" Offset="1" />
+              </LinearGradientBrush>
+            </Border.Background>
+            <Border.Effect>
+              <DropShadowEffect OffsetX="0" OffsetY="1" BlurRadius="12" Opacity="0.9"
+                                Color="{DynamicResource KeySeamColor}" />
+            </Border.Effect>
+          </Border>
+          <Border Name="bankKey"
+                  Background="Transparent"
+                  BorderBrush="Transparent"
+                  BorderThickness="1"
+                  CornerRadius="5"
+                  Padding="{TemplateBinding Padding}">
+            <StackPanel Spacing="3">
+              <ContentPresenter Name="bankKeyContent"
+                                Content="{TemplateBinding Content}"
+                                ContentTemplate="{TemplateBinding ContentTemplate}"
+                                HorizontalAlignment="Center" />
+              <!-- the detent pip: the lamp that says which position is engaged -->
+              <Border Name="bankPip"
+                      Height="3" Width="20" CornerRadius="1.5"
+                      HorizontalAlignment="Center"
+                      Opacity="0.55"
+                      Background="{DynamicResource Line}" />
+            </StackPanel>
+          </Border>
+        </Panel>
       </ControlTemplate>
     </Setter>
   </Style>
@@ -388,8 +411,22 @@
     <Setter Property="FontSize" Value="11.5" />
   </Style>
 
-  <Style Selector="ListBox.bank ListBoxItem:pointerover /template/ Border#bankKey">
-    <Setter Property="BorderBrush" Value="{DynamicResource Line}" />
+  <!-- light, not an outline: the same replacement D-088 made on the keys -->
+  <Style Selector="ListBox.bank ListBoxItem /template/ Border#bankSeam">
+    <Setter Property="Transitions">
+      <Transitions>
+        <DoubleTransition Property="Opacity" Duration="0:0:0.16" Easing="CubicEaseOut" />
+      </Transitions>
+    </Setter>
+  </Style>
+  <Style Selector="ListBox.bank ListBoxItem:pointerover /template/ Border#bankSeam">
+    <Setter Property="Opacity" Value="0.26" />
+  </Style>
+  <Style Selector="ListBox.bank ListBoxItem:pressed /template/ Border#bankSeam">
+    <Setter Property="Opacity" Value="0.7" />
+  </Style>
+  <Style Selector="ListBox.bank:disabled ListBoxItem /template/ Border#bankSeam">
+    <Setter Property="Opacity" Value="0" />
   </Style>
   <Style Selector="ListBox.bank ListBoxItem:pressed /template/ Border#bankKey">
     <Setter Property="Background" Value="{DynamicResource ButtonPressed}" />
diff --git a/tests/CUETools.Linux.Tests/SeamLightTests.cs b/tests/CUETools.Linux.Tests/SeamLightTests.cs
index 5caa9af..120f771 100644
--- a/tests/CUETools.Linux.Tests/SeamLightTests.cs
+++ b/tests/CUETools.Linux.Tests/SeamLightTests.cs
@@ -59,6 +59,30 @@ public void HoverNoLongerDrawsAnOutlineOnTheKeyFace()
             Theme());
     }
 
+    [Fact]
+    public void NoBankPositionOutlinesItselfOnHoverEither()
+    {
+        // the bank keys had the same outline, for the same reason, and it would
+        // have been easy to fix one surface and leave the other
+        Assert.DoesNotMatch(
+            new Regex(@"ListBoxItem:pointerover\s*/template/\s*Border#bankKey"),
+            Theme());
+        Assert.Matches(
+            new Regex(@"ListBoxItem:pointerover\s*/template/\s*Border#bankSeam"),
+            Theme());
+    }
+
+    [Fact]
+    public void TheBankLampNeverAnswersTheQuestionThePipAlreadyAnswers()
+    {
+        // two lights, two questions: the teal pip says which position is
+        // engaged, the warm lamp says which one the pointer is on. Lighting the
+        // seam of the SELECTED key would collapse them into one ambiguous glow.
+        Assert.DoesNotMatch(
+            new Regex(@"ListBoxItem:selected\s*/template/\s*Border#bankSeam"),
+            Theme());
+    }
+
     [AvaloniaFact]
     public void TheHousingLampIsWarmAndNotMistakableForTheAccent()
     {