I would prefer the dotted lines to be scrapped and a bold line down the sides with the colour of the menubar maybe a more dull shade of white. Like light gray.
Remember though, I am not being bossy. I am not saying DO IT! We have to come to an agreement and work as a team. If we don't then the project will fail. But the CM forums are pretty bonded stronger than the other forums I have ever seen, I have no doubts that this project will be excellent.