I've been trying to solve this problem for some time to no avail. When updating to Colorway 3.0 and up, the drop down menu is messed up. There is a large gap between the item hovered over and the drop down menu (I finally figured out how to somewhat fix that) and when hovering over the drop down menu to a sub item, the main menu item loses its color. Also, the drop down animation doesn't, heh, drop down - it fades into the submenu.
You can see what I'm talking about on the Colorway preview on the wordpress site. Just hover over a menu item with a drop down sub menu.
I think it's the superfish.css that's breaking it, but I have no idea. I've rolled back to version 2.5, which doesn't have this problem. Please fix this as soon as possible.