diff --git a/config/plasma/applications/ekklesia-parent-call.desktop b/config/plasma/applications/ekklesia-parent-call.desktop
index c53205e..ded3305 100644
--- a/config/plasma/applications/ekklesia-parent-call.desktop
+++ b/config/plasma/applications/ekklesia-parent-call.desktop
@@ -17,6 +17,9 @@ Terminal=false
 Categories=Utility;
 StartupNotify=true
 StartupWMClass=classroom-parent-call
-# Never in an application list. It is reached from the bar, and it is not
-# one of the room's applications.
-NoDisplay=true
+# Deliberately visible to the applications index. NoDisplay=true hid it
+# from the index the panel resolves launchers through, and the bar showed
+# a blank page instead of the mark. There is no application menu in this
+# classroom for it to clutter — no Kickoff, and KRunner is off — so being
+# in the index costs nothing.
+NoDisplay=false
diff --git a/config/plasma/lookandfeel/contents/layouts/org.kde.plasma.desktop-layout.js b/config/plasma/lookandfeel/contents/layouts/org.kde.plasma.desktop-layout.js
index 5b511a3..83f3f5c 100644
--- a/config/plasma/lookandfeel/contents/layouts/org.kde.plasma.desktop-layout.js
+++ b/config/plasma/lookandfeel/contents/layouts/org.kde.plasma.desktop-layout.js
@@ -41,12 +41,29 @@ panel.opacity = "adaptive";
 
 // LEFT — auxiliary. Parent Call is not one of the room's applications and
 // is deliberately not in the row with them.
-var parentCall = panel.addWidget("org.kde.plasma.icon");
+// A task manager holding one launcher, not the Icon widget.
+//
+// The Icon widget copies the desktop entry into the user's home and uses
+// the copy, so a classroom that had already run would keep the old icon
+// and the old command for ever — an update could never change either.
+// Measured: it kept showing a bell out of a package that no longer
+// contains one. Quick Launch would also do, but Debian does not ship it.
+//
+// This applet reads /usr/share/applications live, which is what an OTA
+// update writes to, and it costs nothing extra: the classroom already
+// runs one for the applications.
+var parentCall = panel.addWidget("org.kde.plasma.icontasks");
 parentCall.currentConfigGroup = ["General"];
-parentCall.writeConfig(
-    "url",
-    "file:///usr/share/applications/ekklesia-parent-call.desktop"
-);
+parentCall.writeConfig("launchers", "applications:ekklesia-parent-call.desktop");
+parentCall.writeConfig("groupingStrategy", 0);
+parentCall.writeConfig("showOnlyCurrentDesktop", false);
+parentCall.writeConfig("showOnlyCurrentActivity", false);
+parentCall.writeConfig("showOnlyCurrentScreen", false);
+parentCall.writeConfig("minimizeActiveTaskOnClick", false);
+parentCall.writeConfig("fill", false);
+parentCall.writeConfig("maxStripes", 1);
+parentCall.writeConfig("wheelEnabled", false);
+parentCall.writeConfig("showToolTips", true);
 
 var leftGap = panel.addWidget("org.kde.plasma.panelspacer");
 leftGap.currentConfigGroup = ["General"];
diff --git a/docs/screenshots/icon-candidates-2.png b/docs/screenshots/icon-candidates-2.png
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diff --git a/docs/screenshots/pc-nobroker.png b/docs/screenshots/pc-nobroker.png
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diff --git a/docs/screenshots/pc-off.png b/docs/screenshots/pc-off.png
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diff --git a/docs/screenshots/pc-panel-left.png b/docs/screenshots/pc-panel-left.png
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index 0000000..3073571
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diff --git a/docs/screenshots/pc-panel.png b/docs/screenshots/pc-panel.png
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diff --git a/docs/screenshots/pc-rejected.png b/docs/screenshots/pc-rejected.png
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