update Dropdown.default_value docs
@@ -107,7 +107,10 @@ class Dropdown(AbstractButton):
""")
default_value = String(help="""
- The default value, otherwise the first item in ``menu`` will be used.
+ A default value to set when a split Dropdown's top button is clicked.
+
+ Setting this property will cause the Dropdown to be rendered as
+ split.
""")
menu = List(Tuple(String, String), help="""
