Here, I used a pewter colored silk and lined the double cascade in an off-white silk. The finials were a blown glass encased in a metal birdcage style. (sad note: this finial was discontinued a while ago).
This treatment is actually constructed of three pieces: the rod pocket panel, the open swag, and the double cascade. The second two parts can be stapled or velcroed to the wood rod.
The beauty of this treatment is that it can be used in pairs to create symmetry. Note how it draws your eye up and not only frames the view of the furniture below, but also points toward the artwork between the windows.