Correct back/forward button assignment

Ptrskay3 · timhoffm · web-flow · commit cf6ab09a3cdf · 2021-09-11T21:37:58.000+02:00
Co-authored-by: Tim Hoffmann &lt;2836374+timhoffm@users.noreply.github.com&gt;
diff --git a/lib/matplotlib/backends/backend_wx.py b/lib/matplotlib/backends/backend_wx.py
@@ -772,8 +772,8 @@ def _onMouseButton(self, event):
             wx.MOUSE_BTN_LEFT: MouseButton.LEFT,
             wx.MOUSE_BTN_MIDDLE: MouseButton.MIDDLE,
             wx.MOUSE_BTN_RIGHT: MouseButton.RIGHT,
-            wx.MOUSE_BTN_AUX1: MouseButton.FORWARD,
-            wx.MOUSE_BTN_AUX2: MouseButton.BACK,
+            wx.MOUSE_BTN_AUX1: MouseButton.BACK,
+            wx.MOUSE_BTN_AUX2: MouseButton.FORWARD,
         }
         button = event.GetButton()
         button = button_map.get(button, button)
