Actually, once I realized that I didn’t have to put a patch on the outside and therefore didn’t need to match colors, this really was an easy fix. All I needed to do was support the fabric and protect the raw edges that I couldn’t turn under. I took a strip of linen from my scrap bin (scraps were called “cabbage” by Renaissance tailors, so my scrap bin is called “the cabbage patch”), folded the edges under, and stitched it down neatly over the seams that were at risk of fraying away.