A shutter includes a frame with frame members that are spaced apart from
one another, and a series of louvers are respectively rotatably mounted
to the frame members. At least one of the frame members includes a casing
defining a cavity. A controller, which preferably includes a rack and
pinion system, is at least partially positioned in the cavity for
synchronously pivoting the louvers. A housing of the controller is
preferably an extrusion that reinforces the casing.