There are a few ideas here, check them out: https://www.hometalk.com/search/posts?filter=hide%20wires. Good luck!
Terri: Here are a variety of solutions:
Try this and after you install it paint it the color of your wall. https://amzn.to/300IK5D
Slice a pool noodle lengthwise and insert the cords. Tape or rubber band closed and paint to match the walls.