Replace the colorful stripe section with a black-and-beige stripe. Type "black and beige stripe fabric" into the google search box.

Replace the stripe fabric at the top with a wider band for the length of the curtain you need.

thank you!

Would suggest going with a solid beige so the pattern is the focal point.

The fabric is from Premier, white and black damask. It is available, but won't be the same dye lot. Consider just solid black and keeping the trim as is.