Two such a mending technique I'd like to point out as source of inspiration: The Japanese Sashiko and the Indian Kantha Embroidery. (The choice is strictly a personal preference.)
Sashiko is a running-stitch technique, originally developed by Japanese peasants to patch torn and worn clothing. Areas of a garment that received the most wear were patched. It made cloth stronger, improved its thermal qualities and recycled worn-out textiles.
|Sashiko patched coat from Ogi Folk Museum|
Over the centuries undyed, white cotton thread gradually became available, a contrast to the indigo-dyed fabrics of the garments.
|antique sashiko cloth from early 19th century|