Use NamedColour from wx_compat

Author: jenshnielsen

lib/matplotlib/backends/backend_wx.py

@@ -1713,10 +1713,7 @@ def draw_rubberband(self, event, x0, y0, x1, y1):
         rubberBandColor = '#C0C0FF'  # or load from config?
 
         # Set a pen for the border
-        if wxc.is_phoenix:
-            color = wx.Colour(rubberBandColor)
-        else:
-            color = wx.NamedColour(rubberBandColor)
+        color = wxc.NamedColour(rubberBandColor)
         dc.SetPen(wx.Pen(color, 1))
 
         # use the same color, plus alpha for the brush