diff --git a/docs/doxygen/mainpages/cat_classes.h b/docs/doxygen/mainpages/cat_classes.h
index 237af60876..3c59730d2f 100644
--- a/docs/doxygen/mainpages/cat_classes.h
+++ b/docs/doxygen/mainpages/cat_classes.h
@@ -168,8 +168,8 @@ Related Overviews: @ref overview_validator
 
 @section page_class_cat_pickers Picker Controls
 
-A picker control is a control whose appearance and behaviour is highly
-platform-dependent.
+These controls provide the user with the possibility to choose something (file
+or directory, font or colour, ...) directly from the window containing them.
 
 @li wxColourPickerCtrl: A control which allows the user to choose a colour
 @li wxDirPickerCtrl: A control which allows the user to choose a directory