Just checked it but I don't see any of the settings here:
Blend will update and will provide you the style properties for the
style. In this case we will change the Background
property to RowBackground and BorderBrush
property to RowBorder.
To do this from the menu select Object > Edit Other Styles
> Edit RowStyle > Edit Style.
Doesn't even exists here.
I really need to edit the style since the default style doesn't match with the rest of the program. Any other idea's how to resolve this?