Fix double red, replace with orange

Author: juanvmarquezl

flask_googlemaps/icons.py

@@ -26,7 +26,7 @@ def __getattr__(self, item):
 
 dots = Icon(
     base_url="//maps.google.com/mapfiles/ms/icons/{0}-dot.png",
-    options=["blue", "yellow", "green", "red", "pink", "purple", "red"],
+    options=["blue", "yellow", "green", "red", "pink", "purple", "orange"],
 )  # type: Icon
 
 alpha = Icon(