diff --git a/qt/aqt/switch.py b/qt/aqt/switch.py
index e8d835d8a..cd594911d 100644
--- a/qt/aqt/switch.py
+++ b/qt/aqt/switch.py
@@ -102,7 +102,11 @@ class Switch(QAbstractButton):
         )
 
     def _paint_knob(self, painter: QPainter) -> None:
-        painter.setBrush(QBrush(theme_manager.qcolor(colors.FRAME_BG)))
+        if theme_manager.night_mode:
+            color = QColor(theme_manager.DARK_MODE_BUTTON_BG_MIDPOINT)
+        else:
+            color = theme_manager.qcolor(colors.FRAME_BG)
+        painter.setBrush(QBrush(color))
         painter.drawEllipse(self._current_knob_rectangle())
 
     def _paint_label(self, painter: QPainter) -> None:
diff --git a/qt/aqt/theme.py b/qt/aqt/theme.py
index 11b30d011..10970b53c 100644
--- a/qt/aqt/theme.py
+++ b/qt/aqt/theme.py
@@ -36,6 +36,10 @@ class ThemeManager:
     _icon_size = 128
     _dark_mode_available: Optional[bool] = None
 
+    # Qt applies a gradient to the buttons in dark mode
+    # from about #505050 to #606060.
+    DARK_MODE_BUTTON_BG_MIDPOINT = "#555555"
+
     def macos_dark_mode(self) -> bool:
         "True if the user has night mode on, and has forced native widgets."
         if not isMac: