Here I cut 7/8 inch double fold bias tape to fit half my window opening width plus about 3/8 inch at each end to hem in the raw edges. Next I gathered the panel to fit, encased it in the bias tape and stitched it very close to the edge. Then I added the clip-on curtain rings. (After I hung it I realized it needed seven, not five, rings to hang right.)
I used some of the left over valance material to add this band at the bottom. The panels are hanging on a cafe tension rod inset in the window because there wasn't enough space for any draping in front of the window opening.
I added a dark red ribbon to the valance and hung it on a regular curtain rod.
Here is how it looks with the panals drawn back during the day.