The opposite wall. That darkness is my living room which has a real library feel: lots of wood, and dark red couches. I don't want to match them, but they are there.....: ) It may not be decoratively correct, but I like the contrast. Or maybe it is just that I refuse to have that heavy feel in the whole house. Would white curtains look too bedroomy, or would colorful ones take away the peaceful feel of that room?

Why are these upside down? They are correct on my computer!

I would pick a subtle, pale print that has the wall color in it...1panel on each side of that beautiful window.

Just click on the photo and it corrects itself. Could you tell us what colors are in the leaded glass?

Your really pretty wall color with the adjacent room having red, made me think of a picture I have saved in my Houzz files. I love the blue with a bit of red. Have you considered bringing the red into your dining room in the drapes?

Here is a link that might be useful: [Houzz room with blue walls and red accents[(https://www.houzz.com/photos/cambridge-residence-traditional-hall-boston-phvw-vp~118383)

Maybe something like these drapes from Pottery Barn

Here is a link that might be useful: Pottery Barn drapes

Those windows are too pretty to cover up. I'd leave them as is....

I would have off-white semi-sheer drapes to pull to the side to the point they only touch the framing of the window and never touch the glass area until you want privacy. Buy decorative drapery rods in a pretty metal, allow the metal to show, have the panels semi-sheer (or opaque if you must) but no print to detract from the lovely walls and beautiful leaded glass.

I love the smocked top drapes and think it would look great with the diamond lites.... PB carries them among others.

The windows are too much a "design element" themselves to detract from with heavy, patterned drapes.

I'd hang either simple sheer panels or transparent lace panels that have an understated pattern.

I love the juxtaposition of the pale blue and red; those colors go together beautifully! If there was any way to find white panels with a very light blue pattern I would use that, and then sew a very narrow red banding in the perfect color of red--- along the leading edge of the curtains.

Thanks for your replies and kind words - and see; you are all over the place too! : ) I agree with each one of you ....until I read the next one! Yaya, the colors in the leaded glass are just of the cars etc. outside. The are clear. I hope they last for a while, They are getting pretty weak. AnnieD: those smoked curtains look like fun to make!
I do want to keep the windows uncovered during the day but at night my dining room is like a big screen TV for all who are passing by. Our street gets a fair amount of traffic - cars as well as families out for a walk. I will probably need a double width of fabric on each side as 50 inches just about stretches flat across each window. That's 12 yards of fabric y'all!

You could do two pairs, one rod, where they are pulled together at each side and two panels in the middle (I don't mean widths, but panels as in 4 panels for two windows, maybe several widths).

These would be very elegant in your space.
http://www.halfpricedrapes.com/eggshell-blackout-faux-silk-taffeta-curtain.html

musicteacher - Did you get your light fixture from Ballards? If so, how do you like it? I've been thinking about ordering it, but I'm just waiting for a sale.

Is there room across the top for some kind of valance behind which you could hide a shade to pull down?

Gorgeous room! I so love the peaceful quietness of the space and would use simple fabric of the wall or wainscot color without pattern (except maybe possibly the texture of Annie's diamond smocking to mirror the diamond window panes?) to keep the focus off the window treatments.

Msrose: yes, it is fron Ballards. I was looking for something kind of colonial, and simple but I like curves. They put everything on sale pretty frequently I too waited for the 20% off sale. It is VERY lightweight which made it easy to hang.