From eecbf62b2ac4f56bf3cd3b3bad8d5129773c2d98 Mon Sep 17 00:00:00 2001
From: Karl Kosack <karl.kosack@cea.fr>
Date: Mon, 26 Jan 2026 18:17:48 +0100
Subject: [PATCH 1/4] Make HTML reprs for Components recursive

---
 src/ctapipe/core/component.py    | 5 +++++
 src/ctapipe/core/qualityquery.py | 6 +++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/ctapipe/core/component.py b/src/ctapipe/core/component.py
index 84c06975113..199f4634900 100644
--- a/src/ctapipe/core/component.py
+++ b/src/ctapipe/core/component.py
@@ -292,6 +292,11 @@ def _repr_html_(self):
                 )
         lines.append("    </tbody>")
         lines.append("</table>")
+
+        for val in self.__dict__.values():
+            if isinstance(val, Component):
+                lines.append(val._repr_html_())
+
         lines.append("</div>")
         return "\n".join(lines)
 
diff --git a/src/ctapipe/core/qualityquery.py b/src/ctapipe/core/qualityquery.py
index 54081744042..64a2bb7222c 100644
--- a/src/ctapipe/core/qualityquery.py
+++ b/src/ctapipe/core/qualityquery.py
@@ -85,9 +85,9 @@ def to_table(self, functions=False):
             cols["func"] = ["True"] + self.expressions
         return Table(cols)
 
-    def _repr_html_(self):
-        """display nicely in Jupyter notebooks"""
-        return self.to_table()._repr_html_()
+    # def _repr_html_(self):
+    #    """display nicely in Jupyter notebooks"""
+    #    return self.to_table()._repr_html_()
 
     def __str__(self):
         """Print a formatted string representation of the entire table."""

From b3975c2fc345f3e676430a870c580f69ea55b481 Mon Sep 17 00:00:00 2001
From: Karl Kosack <karl.kosack@cea.fr>
Date: Mon, 26 Jan 2026 18:32:18 +0100
Subject: [PATCH 2/4] remove commented code

---
 src/ctapipe/core/qualityquery.py | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/ctapipe/core/qualityquery.py b/src/ctapipe/core/qualityquery.py
index 64a2bb7222c..50020a2b9b4 100644
--- a/src/ctapipe/core/qualityquery.py
+++ b/src/ctapipe/core/qualityquery.py
@@ -85,10 +85,6 @@ def to_table(self, functions=False):
             cols["func"] = ["True"] + self.expressions
         return Table(cols)
 
-    # def _repr_html_(self):
-    #    """display nicely in Jupyter notebooks"""
-    #    return self.to_table()._repr_html_()
-
     def __str__(self):
         """Print a formatted string representation of the entire table."""
         return str(self.to_table())

From 81837471ad9f69fbcb086f739991fdcb81f027c0 Mon Sep 17 00:00:00 2001
From: Karl Kosack <karl.kosack@cea.fr>
Date: Tue, 27 Jan 2026 09:13:58 +0100
Subject: [PATCH 3/4] add changelog

---
 docs/changes/2926.feature.rst | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 docs/changes/2926.feature.rst

diff --git a/docs/changes/2926.feature.rst b/docs/changes/2926.feature.rst
new file mode 100644
index 00000000000..0bfabf55b55
--- /dev/null
+++ b/docs/changes/2926.feature.rst
@@ -0,0 +1 @@
+the Jupyter notebook HTML representation of `~ctapipe.core.Container` instances now recursively shows the config of sub-components used in the component instance.  This makes it easier to see the full configuration in a user-friendly way.

From a77daa2990f13285be074ecd872a2cf7753d0d88 Mon Sep 17 00:00:00 2001
From: Karl Kosack <karl.kosack@cea.fr>
Date: Wed, 28 Jan 2026 11:57:08 +0100
Subject: [PATCH 4/4] include name in repr

---
 src/ctapipe/core/component.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/ctapipe/core/component.py b/src/ctapipe/core/component.py
index 199f4634900..4f79e2921cd 100644
--- a/src/ctapipe/core/component.py
+++ b/src/ctapipe/core/component.py
@@ -260,7 +260,7 @@ def _repr_html_(self):
             docstring = publish_parts(clean_doc, writer=writer)["html_body"]
         lines = [
             '<div style="border:1px solid black; max-width: 700px; padding:2em; word-wrap:break-word;">',
-            f"<b>{name}</b>",
+            f"<h3>{name}</h3>",
             docstring,
             "<table>",
             "    <colgroup>",
@@ -293,8 +293,9 @@ def _repr_html_(self):
         lines.append("    </tbody>")
         lines.append("</table>")
 
-        for val in self.__dict__.values():
+        for name, val in self.__dict__.items():
             if isinstance(val, Component):
+                lines.append(f"<h4>{name}:</h4>")
                 lines.append(val._repr_html_())
 
         lines.append("</div>")