Documentation fix.

modules/juce_gui_basics/buttons/juce_ImageButton.h

@@ -45,7 +45,7 @@ public:
     /** Creates an ImageButton.
 
         Use setImage() to specify the image to use. The colours and opacities that
-        are specified here can be changed later using setDrawingOptions().
+        are specified here can be changed later using setImages().
 
         @param name                 the name to give the component
     */