diff --git a/src/settings_pane.cc b/src/settings_pane.cc
index 4e52d55..fe2abd3 100644
--- a/src/settings_pane.cc
+++ b/src/settings_pane.cc
@@ -3,6 +3,8 @@
 #include <QCheckBox>
 #include <QDoubleSpinBox>
 #include <QFormLayout>
+#include <QGroupBox>
+#include <QVBoxLayout>
 
 
 SettingsPane::SettingsPane(QWidget *parent)
@@ -25,14 +27,21 @@ SettingsPane::SettingsPane(QWidget *parent)
 	layout->addRow("Taille de la sphère de collision", sphere_radius);
 	layout->addRow("Afficher les trajectoires", show_trajectories);
 	layout->addRow("Afficher les lignes de support", show_support_lines);
-	layout->addRow(collisions);
+	QGroupBox *box = new QGroupBox();
+	box->setTitle("Collisions");
+	box->setFlat(true);
+	box->setAlignment(Qt::AlignHCenter);
+	QVBoxLayout *box_layout = new QVBoxLayout();
+	box_layout->addWidget(collisions);
+	box->setLayout(box_layout);
+	layout->addRow(box);
 	setLayout(layout);
 }
 
 
 void SettingsPane::addCollision(int idA, int idB, int frame) {
-	CollisionItem *item = new CollisionItem(QString::number(frame) + ": "
-											+ QString::number(idA) + " / " + QString::number(idB),
+	CollisionItem *item = new CollisionItem("Frame " + QString::number(frame) + ": #"
+											+ QString::number(idA) + " et #" + QString::number(idB),
 											frame);
 	item->setFlags(Qt::ItemIsEnabled | Qt::ItemNeverHasChildren);
 	collisions->addItem(item);