see screenshot: http://www.enlightenment.org/ss/e-53e50df2b36d24.75307877.jpg
you can see the chromium title is striked through by a black line. this line is assosiated with the shelve on top of it which has the style "invisible". same on the second monitor right. looks like there is still a border or a shadow with it.
this is Version: 0.18.8-30.24 from openSuse:Enlightenment:Factory