diff --git a/docs/source/images/grey_line.png b/docs/source/images/world_map.png
similarity index 100%
rename from docs/source/images/grey_line.png
rename to docs/source/images/world_map.png
diff --git a/docs/source/toolbox.rst b/docs/source/toolbox.rst
index d21a589..fc8cea9 100644
--- a/docs/source/toolbox.rst
+++ b/docs/source/toolbox.rst
@@ -42,7 +42,7 @@ The user's QTH can be pin-pointed on the map by specifying the QTH's location (e
    .. figure::  images/world_map.png
       :align:   center
       
-      The world map tool with the user's QTH (e.g. Southampton) pin-pointed.
+      The world map tool with the user's QTH (e.g. Southampton) pin-pointed in red, and several other worked stations pin-pointed in yellow. Worked grid squares are shaded purple.
 
 Awards
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