Merge pull request #3 from SetTrend/borderStyle

Border style `topDivider` added to documentation.

Author: zlovatt

docs/user-interface-tools/control-objects.rst

@@ -458,7 +458,9 @@ To add to a window ``w``::
                            - ``name``: A unique name for the control.
                            - ``borderStyle``: A string that specifies the appearance of the
                              border drawn around the panel. One of ``black``, ``etched``,
-                             ``gray``, ``raised`` or ``sunken``. Default is ``etched``.
+                             ``gray``, ``raised``, ``sunken`` or ``topDivider``.
+                             ``topDivider`` draws a horizonal line at the top of the panel
+                             only. Default is ``etched``.
                            - ``subPanelCoordinates``: When true, this panel automatically
                              adjusts the positions of its children for compatability with
                              Photoshop CS. Default is false, meaning that the panel does
@@ -467,6 +469,9 @@ To add to a window ``w``::
 
 =======================  ==================================================================
 
+.. warning::
+    The ``topDivider`` property is officially undocumented and was found via research. Please contribute if you have more information on it!
+
 .. _control-type-progressbar:
 
 progressbar